Dremel 4300-5/40 Manuel utilisateur

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Operating/Safety Instructions

Consignes de fonctionnement/sécurité

Instrucciones de funcionamiento y seguridad

1-800-4-DREMEL (1-800-437-3635) www.dremel.com

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P.O. Box 081126 Racine, WI 53408-1126

4300

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Work area safety

Keep work area clean and well lit. Cluttered

or dark areas invite accidents.

Do not operate power tools in explosive

atmospheres, such as in the presence of

flammable liquids, gases or dust. Power

tools create sparks which may ignite the dust

or fumes.

Keep children and bystanders away while

operating a power tool. Distractions can

cause you to lose control.

Electrical safety

Power tool plugs must match the outlet.

Never modify the plug in any way. Do not

use any adapter plugs with earthed

(grounded) power tools. Unmodified plugs

and matching outlets will reduce risk of electric

shock.

Avoid body contact with earthed or grounded

surfaces such as pipes, radiators, ranges

and refrigerators. There is an increased risk

of electric shock if your body is earthed or

grounded.

Do not expose power tools to rain or wet

conditions. Water entering a power tool will

increase the risk of electric shock.

Do not abuse the cord. Never use the cord

for carrying, pulling or unplugging the power

tool. Keep cord away from heat, oil, sharp

edges or moving parts. Damaged or entangled

cords increase the risk of electric shock.

When operating a power tool outdoors,

use an extension cord suitable for outdoor

use. Use of a cord suitable for outdoor use

reduces the risk of electric shock.

If operating a power tool in a damp location

is unavoidable, use a Ground Fault Circuit

Interrupter (GFCI) protected supply. Use of

an GFCI reduces the risk of electric shock.

Personal safety

Stay alert, watch what you are doing and

use common sense when operating a

power tool. Do not use a power tool while

you are tired or under the influence of drugs,

alcohol or medication. A moment of inattention

while operating power tools may result in

serious personal injury.

Use personal protective equipment. Always

wear eye protection. Protective equipment

such as dust mask, non-skid safety shoes, hard

hat, or hearing protection used for appropriate

conditions will reduce personal injuries.

Read all safety warnings and all instructions. Failure to follow the warnings

and instructions may result in electric shock, fire and/or serious injury.

SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE

The term “power tool” in the warnings refers to your mains-operated (corded) power tool or

battery-operated (cordless) power tool.

General Power Tool Safety Warnings

Safety Symbols

The definitions below describe the level of severity for each signal word. Please read the manual

and pay attention to these symbols.

!

This is the safety alert symbol. It is used to alert you to potential

personal injury hazards. Obey all safety messages that follow this

symbol to avoid possible injury or death.

DANGER indicates a hazardous situation which, if not avoided, will

result in death or serious injury.

WARNING indicates a hazardous situation which, if not avoided, could

result in death or serious injury.

CAUTION, used with the safety alert symbol, indicates a hazardous

situation which, if not avoided, will result in minor or moderate injury.

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Prevent unintentional starting. Ensure the

switch is in the off-position before

c

onnecting to power source and / or battery

pack, picking up or carrying the tool.

Carrying power tools with your finger on the

switch or energizing power tools that have the

switch on invites accidents.

Remove any adjusting key or wrench before

turning the power tool on. A wrench or a key

left attached to a rotating part of the power

tool may result in personal injury.

Do not overreach. Keep proper footing and

balance at all times. This enables better

control of the power tool in unexpected

situations.

Dress properly. Do not wear loose clothing

or jewelry. Keep your hair, clothing and

gloves away from moving parts. Loose

clothes, jewelry or long hair can be caught in

moving parts.

If devices are provided for the connection

of dust extraction and collection facilities,

ensure these are connected and properly

used. Use of dust collection can reduce dust-

related hazards.

Power tool use and care

Do not force the power tool. Use the

correct power tool for your application. The

correct power tool will do the job better and

safer at the rate for which it was designed.

Do not use the power tool if the switch does

not turn it on and off. Any power tool that

cannot be controlled with the switch is

dangerous and must be repaired.

Disconnect the plug from the power source

and/or the battery pack from the power tool

b

efore making any adjustments, changing

accessories, or storing power tools. Such

preventive safety measures reduce the risk of

starting the power tool accidentally.

Store idle power tools out of the reach of

children and do not allow persons unfamiliar

with the power tool or these instructions to

operate the power tool. Power tools are

dangerous in the hands of untrained users.

Maintain power tools. Check for misalignment

or binding of moving parts, breakage of

parts and any other condition that may

affect the power tool’s operation. If damaged,

have the power tool repaired before use.

Many accidents are caused by poorly

maintained power tools.

Keep cutting tools sharp and clean. Properly

maintained cutting tools with sharp cutting

edges are less likely to bind and are easier to

control.

Use the power tool, accessories and tool

bits etc. in accordance with these instructions,

taking into account the working conditions

and the work to be performed. Use of the

power tool for operations different from those

intended could result in a hazardous situation.

Service

Have your power tool serviced by a qualified

repair person using only identical

replacement parts. This will ensure that the

safety of the power tool is maintained.

Safety warnings common for

grinding, sanding, wire brushing,

polishing, carving or abrasive

cutting-off operations:

This power tool is intended to function as a

grinder, sander, wire brush, polisher,

carving or cut-off tool. Read all safety

warnings, instructions, illustrations and

specifications provided with this power

tool. Failure to follow all instructions listed

below may result in electric shock, fire and/or

serious injury.

Do not use accessories which are not

specifically designed and recommended by

the tool manufacturer. Just because the

accessory can be attached to your power tool,

it does not assure safe operation.

The RATED SPEED of the accessories

must be at least equal to the operating

speed setting marked on the power tool.

Accessories running faster than their RATED

SPEED can break and fly apart.

The outside diameter and the thickness of

your accessory must be within the capacity

rating of your power tool. Incorrectly sized

accessories cannot be adequately guarded or

controlled.

The arbor size of wheels, sanding drums or

any other accessory must properly fit the

spindle or collet of the power tool.

Accessories that do not match the mounting

hardware of the power tool will run out of

balance, vibrate excessively and may cause

loss of control.

Safety Rules for Rotary Tools

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Mandrel mounted wheels, sanding drums,

c

utters or other accessories must be fully

inserted into the collet or chuck. If the

mandrel is insufficiently held and/or the

overhang of the wheel is too long, the mounted

wheel may become loose and be ejected at

high velocity.

Do not use a damaged accessory. Before

each use inspect the accessory such as

abrasive wheels for chips and cracks,

sanding drum for cracks, tear or excess

wear, wire brush for loose or cracked wires.

If power tool or accessory is dropped,

inspect for damage or install an undamaged

accessory. After inspecting and installing

an accessory, position yourself and

bystanders away from the plane of the

rotating accessory and run the power tool

at maximum no-load speed for one minute.

Damaged accessories will normally break apart

during this test time.

Wear personal protective equipment.

Depending on application, use face shield,

safety goggles or safety glasses. As

appropriate, wear dust mask, hearing

protectors, gloves and workshop apron

capable of stopping small abrasive or

workpiece fragments. The eye protection

must be capable of stopping flying debris

generated by various operations. The dust

mask or respirator must be capable of filtrating

particles generated by your operation.

Prolonged exposure to high intensity noise may

cause hearing loss.

Keep bystanders a safe distance away from

work area. Anyone entering the work area

must wear personal protective equipment.

Fragments of workpiece or of a broken

accessory may fly away and cause injury

beyond immediate area of operation.

Hold the power tool by insulated gripping

surfaces only, when performing an

operation where the cutting accessory may

contact hidden wiring or its own cord.

Cutting accessory contacting a “live” wire may

make exposed metal parts of the power tool

“live” and could give the operator an electric

shock.

Always hold the tool firmly in your hand(s)

during the start-up. The reaction torque of the

motor, as it accelerates to full speed, can cause

the tool to twist.

Use clamps to support workpiece whenever

practical. Never hold a small workpiece in

one hand and the tool in the other hand

w

hile in use. Clamping a small workpiece

allows you to use your hand(s) to control the

tool. Round material such as dowel rods, pipes

or tubing have a tendency to roll while being

cut, and may cause the bit to bind or jump

toward you.

Position the cord clear of the spinning

accessory. If you lose control, the cord may be

cut or snagged and your hand or arm may be

pulled into the spinning accessory.

Never lay the power tool down until the

accessory has come to a complete stop.

The spinning accessory may grab the surface

and pull the power tool out of your control.

After changing the bits or making any

adjustments, make sure the collet nut,

chuck or any other adjustment devices are

securely tightened. Loose adjustment devices

can unexpectedly shift, causing loss of control,

loose rotating components will be violently

thrown.

Do not run the power tool while carrying it

at your side. Accidental contact with the

spinning accessory could snag your clothing,

pulling the accessory into your body.

Regularly clean the power tool’s air vents.

The motor’s fan will draw the dust inside the

housing and excessive accumulation of

powdered metal may cause electrical hazards.

Do not operate the power tool near

flammable materials. Sparks could ignite

these materials.

Do not use accessories that require liquid

coolants. Using water or other liquid coolants

may result in electrocution or shock.

Use only in well-ventilated area. Working in a

safe environment reduces risk of injury.

Allow for sufficient space, at least 6”,

between your hand and the spinning bit. Do

not reach in the area of the spinning bit. The

proximity of the spinning bit to your hand may

not always be obvious.

Do not touch the bit or collet after use. After

use the bit and collet are too hot to be touched

by bare hands.

Do not alter or misuse tool. Any alteration or

modification is a misuse and may result in

serious personal injury.

This product is not intended for use as a

dental drill, in human or veterinary medical

applications. Serious injury may result.

Safety Rules for Rotary Tools - (cont.)

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Safety Rules for Rotary Tools - (cont.)

Kickback and Related Warnings

Kickback is a sudden reaction to a pinched or

snagged rotating wheel, backing pad, brush or

any other accessory. Pinching or snagging

causes rapid stalling of the rotating accessory

which in turn causes the uncontrolled power

tool to be forced in the direction opposite of the

accessory’s rotation.

For example, if an abrasive wheel is snagged

or pinched by the workpiece, the edge of the

wheel that is entering into the pinch point can

dig into the surface of the material causing the

wheel to climb out or kickout. The wheel may

either jump toward or away from the operator,

depending on direction of the wheel’s

movement at the point of pinching. Abrasive

wheels may also break under these conditions.

Kickback is the result of power tool misuse

and/or incorrect operating procedures or

conditions and can be avoided by taking proper

precautions as given below.

Maintain a firm grip on the power tool and

position your body and arm to allow you to

resist kickback forces. The operator can

control kickback forces, if proper precautions

are taken.

Use special care when working corners,

sharp edges etc. Avoid bouncing and

snagging the accessory. Corners, sharp

edges or bouncing have a tendency to snag the

rotating accessory and cause loss of control or

kickback.

Do not attach a toothed saw blade. Such

blades create frequent kickback and loss of

control.

Always feed the bit into the material in the

same direction as the cutting edge is exiting

from the material (which is the same

direction as the chips are thrown). Feeding

the tool in the wrong direction causes the

cutting edge of the bit to climb out of the work

and pull the tool in the direction of this feed.

When using rotary files, cut-off wheels,

high-speed cutters or tungsten carbide

cutters, always have the work securely

clamped. These wheels will grab if they

become slightly canted in the groove, and can

kickback. When a cut-off wheel grabs, the

wheel itself usually breaks. When a rotary file,

high-speed cutter or tungsten carbide cutter

grabs, it may jump from the groove and you

could lose control of the tool.

Safety warnings specific for

grinding and abrasive

cutting-off operations:

Use only wheel types that are

recommended for your power tool and only

for recommended applications. For

example: do not grind with the side of a cut-

off wheel. Abrasive cut-off wheels are intended

for peripheral grinding, side forces applied to

these wheels may cause them to shatter.

For threaded abrasive cones and plugs use

only undamaged wheel mandrels with an

unrelieved shoulder flange that are of

correct size and length. Proper mandrels will

reduce the possibility of breakage.

Do not ′′jam′′ a cut-off wheel or apply

excessive pressure. Do not attempt to make

an excessive depth of cut. Overstressing the

wheel increases the loading and susceptibility

to twisting or snagging of the wheel in the cut

and the possibility of kickback or wheel

breakage.

Do not position your hand in line with and

behind the rotating wheel. When the wheel,

at the point of operation, is moving away from

your hand, the possible kickback may propel

the spinning wheel and the power tool directly

at you.

When wheel is pinched, snagged or when

interrupting a cut for any reason, switch off

the power tool and hold the power tool

motionless until the wheel comes to a

complete stop. Never attempt to remove the

cut-off wheel from the cut while the wheel is

in motion otherwise kickback may occur.

Investigate and take corrective action to

eliminate the cause of wheel pinching or

snagging.

Do not restart the cutting operation in the

workpiece. Let the wheel reach full speed

and carefully re-enter the cut. The wheel may

bind, walk up or kickback if the power tool is

restarted in the workpiece.

Support panels or any oversized workpiece

to minimize the risk of wheel pinching and

kickback. Large workpieces tend to sag under

their own weight. Supports must be placed

under the workpiece near the line of cut and

near the edge of the workpiece on both sides of

the wheel.

Use extra caution when making a ′′pocket

cut′′ into existing walls or other blind areas.

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Additional Safety Warnings

The protruding wheel may cut gas or water

pipes, electrical wiring or objects that can

cause kickback.

Safety warnings specific for wire

brushing operations:

Be aware that wire bristles are thrown by

the brush even during ordinary operation.

Do not overstress the wires by applying

excessive load to the brush. The wire bristles

can easily penetrate light clothing and/or skin.

Allow brushes to run at operating speed for

at least one minute before using them.

During this time no one is to stand in front

or in line with the brush. Loose bristles or

wires will be discharged during the run-in time.

Direct the discharge of the spinning wire

brush away from you. Small particles and tiny

wire fragments may be discharged at high

velocity during the use of these brushes and

may become imbedded in your skin.

Do not use router bit

with the Dremel chuck.

Bit may become a projectile and cause serious

injury.

GFCI and personal protection devices like

electrician’s rubber gloves and footwear will

further enhance your personal safety.

Do not use AC only rated tools with a DC

power supply. While the tool may appear to

work, the electrical components of the AC

rated tool are likely to fail and create a hazard

to the operator.

Keep handles dry, clean and free from oil

and grease. Slippery hands cannot safely

control the power tool.

Use clamps or other practical way to secure

and support the workpiece to a stable

platform. Holding the work by hand or against

your body is unstable and may lead to loss of

control.

Develop a periodic maintenance schedule

for your tool. When cleaning a tool be

careful not to disassemble any portion of

the tool since internal wires may be

misplaced or pinched or safety guard return

springs may be improperly mounted.

Certain cleaning agents such as gasoline,

carbon tetrachloride, ammonia, etc. may

damage plastic parts.

Risk of injury to user. The power cord must only

be serviced by a Dremel Service Facility..

Some dust created by

power sanding, sawing,

grinding, drilling, and other construction

activities contains chemicals known to

cause cancer, birth defects or other

reproductive harm. Some examples of

these chemicals are:

• Lead from lead-based paints,

• Crystalline silica from bricks and cement and

other masonry products, and

• Arsenic and chromium from chemically-

treated lumber.

Your risk from these exposures varies,

depending on how often you do this type of

work. To reduce your exposure to these

chemicals: work in a well ventilated area, and

work with approved safety equipment, such as

those dust masks that are specially designed

to filter out microscopic particles.

Safety Rules for Rotary Tools - (cont.)

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IMPORTANT: Some of the following symbols may be used on your tool. Please study them

and learn their meaning. Proper interpretation of these symbols will allow you to operate the

tool better and safer.

Symbols

Symbol Designation / Explanation

V Volts (voltage)

A Amperes (current)

Hz Hertz (frequency, cycles per second)

W Watt (power)

kg Kilograms (weight)

min Minutes (time)

s Seconds (time)

⌀

Diameter (size of drill bits, grinding wheels, etc.)

n

0

No load speed (rotational speed at no load)

n Rated speed (maximum attainable speed)

.../min

Revolutions or reciprocation per minute (revolutions, strokes, surface speed,

orbits etc. per minute)

0 Off position (zero speed, zero torque...)

1, 2, 3, ...

I, II, III,

Selector settings (speed, torque or position settings. Higher number means

greater speed)

0

Infinitely variable selector with off (speed is increasing from 0 setting)

Arrow (action in the direction of arrow)

Alternating current (type or a characteristic of current)

Direct current (type or a characteristic of current)

Alternating or direct current (type or a characteristic of current)

Class II construction (designates double insulated construction tools)

Earthing terminal (grounding terminal)

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 7

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Symbols (continued)

IMPORTANT: Some of the following symbols may be used on your tool. Please study them

and learn their meaning. Proper interpretation of these symbols will allow you to operate the

tool better and safer.

Symbol Designation / Explanation

Designates Li-ion battery recycling program

Designates Ni-Cad battery recycling program

Alerts user to read manual

Alerts user to wear eye protection

This symbol designates that this tool is listed by Underwriters Laboratories.

This symbol designates that this component is recognized by Underwriters

Laboratories.

This symbol designates that this tool is listed by Underwriters Laboratories,

to United States and Canadian Standards.

This symbol designates that this tool is listed by the Canadian Standards

Association.

This symbol designates that this tool is listed by the Canadian Standards

Association, to United States and Canadian Standards.

This symbol designates that this tool is listed by the Intertek Testing

Services, to United States and Canadian Standards.

This symbol designates that this tool complies to NOM Mexican Standards.

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 8

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Disconnect the plug from the power source before making any

assembly, adjustments or changing accessories. Such preventive

safety measures reduce the risk of starting the tool accidentally.

Functional Description and Specifications

Model 4300 High Speed Rotary Tool

ON/OFF

SWITCH

SHAFT LOCK

BUTTON

CORD

VENTILATION

OPENINGS

HANGER

EZ TWIST™

INTEGRATED

WRENCH/ NOSE CAP

LIGHT

MODULE

LIGHT MODULE

ON/OFF SWITCH

DREMEL

CHUCK

SHAFT

Model number 4300

Voltage rating 120V 50—60Hz

Amperage rating 1.8A

Rated speed n 5,000—35,000 /min

Chuck capacity 1/32"—1/8"

FIG. 1

VARIABLE SPEED

DIAL

BRUSH COVER

(one on each side)

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Always unplug Rotary Tool before changing accessories, changing

collets or servicing your Rotary Tool.

Assembly

L

IGHT MODULE

The light module included with your tool is

intended to provide you with improved visibility

while working on your project. It uses 2

replaceable CR1025 batteries (included) to

power the LED and can be rotated around the

front of the tool depending on your needs.

Changing Batteries

Chemical Burn Hazard.

Keep batteries away from

children. This product contains a lithium

button/coin cell battery. If a new or used lithium

button/coin cell battery is swallowed or enters

the body, it can cause severe internal burns and

can lead to death in as little as 2 hours. Always

completely secure the battery compartment. If

the battery compartment does not close

securely, stop using the product, remove the

batteries, and keep it away from children. If you

think batteries might have been swallowed or

placed inside any part of the body, seek

immediate medical attention.

To change the batteries for the light module,

begin by unscrewing the nose cap to remove

the light module. Once it is removed, use a

small screwdriver to loosen the screw on the

battery compartment. Do not pull the screw

out completely! Remove the battery

c

ompartment housing from the underside of the

module. Slide the old batteries out and replace

with new batteries making sure to replicate the

orientation of the original batteries. With the

new batteries in place, replace the battery

compartment housing and re-tighten the screw.

When reassembling make sure that the switch

and the slider are both in the same ON (I) or

OFF (O) position. This way the switch will match

the “fork” of the slider (Fig. 2).

Installation and Use

To install the light module on the tool, begin by

unscrewing the nose cap from the end of the

tool. Slide the light module onto the end of the

tool with the light pointing forward. Re-tighten

the nose cap on the end of the tool to squeeze

the light module ring in place (Fig. 1). The light

module will only work with the new style nose

cap that came with your tool. The difference

between the old and new nose cap are shown

in Fig. 2a.

Depending on how you are using your rotary

tool, you may find that the light module is either

in the way or that you would like to illuminate

your workpiece differently. To reposition the light

module, simply loosen the nose cap, rotate the

light module as desired, and re-tighten the nose

cap.

FIG. 2

CR1025 BATTERIES

BATTERY

COMPARTMENT

LIGHT

MODULE

SWITCH SLIDER

SCREW

OLD

NOSE CAP

NEW

FIG. 2a

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 10

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DREMEL CHUCK

Dremel Chuck allows you to quickly and

easily change accessories on Dremel Rotary

Tools without changing collets. Accepts

accessories with 1/32” - 1/8” shank. To

loosen, first press shaft lock button and

rotate the shaft by hand until the lock

engages the shaft preventing further rotation.

Do not engage lock

while the Rotary Tool is

running.

With the shaft lock engaged use the wrench

or the EZ Twist Nose Cap to loosen the

chuck and open the jaws. Remove the

accessory from the chuck. If necessary,

continue loosening the chuck so that the new

accessory fits between the jaws. Insert the

new accessory into the chuck far enough so

that there is approximately 1/4” between the

end of the chuck and the beginning of the

working part of the accessory (drill bit flutes,

sand paper, engraving end, etc.). With the

shaft lock engaged, tighten the chuck using

the EZ Twist Nose Cap or wrench to secure

the accessory.

Helpful Tips when using the

Dremel Chuck

• The Dremel Chuck and the collet and collet

nut system are interchangeable on this tool.

While the chuck will provide you with the best

experience for changing accessories, the

collet and collet nut will provide a more

precise accessory holding solution especially

in heavier side load applications. If you will be

using your rotary tool for routing, heavy wood

or metal cutting, heavy sanding, or carving

you will probably have a better experience

using the collet and collet nut.

• The Dremel Chuck needs to be securely

tightened in order to retain the accessory

during use. If you find the accessory slipping

in the chuck, use the included EZTwist Nose

Cap or wrench to tighten the chuck around

the bit. If further slippage persists, switch to

using the collet and collet nut.

• The jaws of the chuck can become displaced

if dropped, pried against, or filled with dust

causing the accessory to no longer run true

and concentric. This is often called run-out.

To reset the jaws, apply the following

procedure:

1. Remove the accessory from the chuck.

2. Clean the chuck if necessary using

compressed air.

Always wear safety

goggles when cleaning

tools with compressed air.

3. Press shaft lock button and tighten the chuck

until the jaws extend past the outer surface of

the chuck, approximately 1/8".

4. Push the end of the chuck firmly against a

hard flat surface to be sure the jaws are all

seated axially.

5. Continue to hand tighten the chuck until the

jaws completely close.

6. Loosen the chuck, and reinsert a straight

accessory.

7. Turn the tool by hand and observe if there is

any run-out. If there is obvious run-out,

repeat the procedure.

8. With the shaft lock engaged, tighten the

chuck using the EZ Twist Nose Cap or

wrench to secure the accessory.

9. Turn the tool on to the lowest speed setting

and observe for run-out. If there is obvious

run-out, check that the accessory is straight

before repeating the procedure.

FIG. 3

SHAFT LOCK

BUTTON

DREMEL

CHUCK

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 11

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Model No. Description

Dremel chuck

compatible? Comment

220 Workstation drill press Yes

225 Flex Shaft Yes

Chuck fits on the

output shaft of the

Flex Shaft

335-01 Plunge Router No Collet is required

A550 Shield Yes

565 Multipurpose cutting kit No Collet is required

575 Right angle attachment Yes

Chuck fits on the

output shaft of the

right angle

attachment

670 Mini Saw attachment N/A

A679-02 Sharpening kit No Collet is required

231 Router Table No Collet is required

A576 Sanding/Grinding Guide No Collet is required

490 Dust Blower No Collet is required

577 Detailers Grip Yes

678-01 Circle cutter / straight edge guide No Collet is required

BALANCING ACCESSORIES

F

or precision work, it is important that all

accessories be in good balance (much the

same as the tires on your automobile). To true

up or balance an accessory, slightly loosen

chuck or collet nut and give the accessory or

collet a 1/4 turn. Re tighten the chuck or collet

nut and run the Rotary Tool. You should be able

to tell by the sound and feel if your accessory is

running in balance. Continue adjusting in this

fashion until best balance is achieved. To

maintain balance on abrasive wheel points,

before each use, with the wheel point secured

in the collet, turn on the Rotary Tool and run the

415 Dressing Stone lightly against the revolving

wheel point. This removes high spots and trues

up the wheel point for good balance.

4300 Attachment Compatibility

Dremel rotary tool attachments allow you to

change the function of your tool so that it is

more optimized for your application. You can

find the full line of Dremel rotary tool

attachments on Dremel.com. The Dremel

4300 is compatible with all currently available

Dremel attachments. Depending on the

attachment being used, you will either need to

use a collet and collet nut to hold the accessory

or will be able to use the Dremel Chuck to hold

the accessory. The following chart shows

which attachments function with the Dremel

Chuck. For more information on individual

attachments, please refer to the user manual

for those attachments in this manual or that

came with those attachments.

Do not use router bit with the Dremel chuck. Bit may become a projectile

and cause serious injury.

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 12

13

COLLETS

F

our different size collets (see illus tration), to

accommodate different shank sizes, are avail -

able for your Rotary Tool. To install a different

collet, remove the collet nut and remove the old

collet. Insert the unslotted end of the collet in

the hole in the end of the tool shaft. Replace

collet nut on the shaft.

Always use the collet

which matches the shank

size of the accessory you plan to use. Never

force a larger diameter shank into a collet.

Note: Most rotary tool kits do not include all

four collets sizes.

FIXING STUCK COLLETS

It is possible for a collet to get stuck within the

collet nut especially if a collet nut is tightened

onto the tool without a bit in place. If this

happens, the collet can be removed from the

collet nut by pushing the shank of an accessory

into the hole in the collet nut. This should cause

the collet to pop out of the collet nut.

COLLET NUT

To loosen, first press shaft lock button and

rotate the shaft by hand until the lock engages

the shaft preventing further rotation. Your

Dremel 4300 is equipped with a quick shaft lock

m

echanism. This mechanism engages the

output shaft in 8 separate locations on the shaft

for easier operation.

Do not engage lock while

the Rotary Tool is running.

With the shaft lock engaged use the collet

wrench to loosen the collet nut if necessary. The

collet nut must be loosely threaded on when

inserting an accessory. Change accessories by

inserting the new one into the collet as far as

possible to minimize runout and unbalance.

With the shaft lock engaged, use collet wrench

or EZ Twist Nose Cap to securely tighten the

collet nut. (Fig. 5). Avoid excessive tightening

of the collet nut when there is no bit

inserted.

EZ TWIST™ INTEGRATED

WRENCH/NOSE CAP

The nose cap of your tool has an integrated

wrench allowing you to loosen and tighten the

collet nut without the use of the standard collet

wrench. Unscrew the nose cap from the tool,

line-up steel insert on inside of cap with collet

nut. With the shaft lock engaged twist nose cap

clockwise to tighten, and counter-clockwise to

loosen (Fig. 6).

COLLET IDENTIFICATION CHART

Collet sizes can be identified by the rings

on the back end of collet.

1/32" Collet has one (1) ring.

1/16" Collet has two (2) rings.

3/32" Collet has three (3) rings.

1/8" Collet has no rings. (Included in

most tool kits on the tool)

COLLET

NUT

IDENTIFICATION

RINGS

480

1/8"

COLLET

481

3/32"

COLLET

482

1/16"

COLLET

483

1/32"

COLLET

NUT

TO

LOOSEN

TO

TIGHTEN

COLLET

WRENCH

SHAFT LOCK

BUTTON

COLLET

NUT

TO

LOOSEN

TO

TIGHTEN

SHAFT LOCK

BUTTON

EZ TWIST™

INTEGRATED

WRENCH/NOSE CAP

FIG. 5

FIG. 6

FIG. 4

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 13

14

Operating Instructions

Dremel 4300

Thank you for purchasing the Dremel 4300.

This product was designed by the many

Dremel users who passionately use their rotary

tools daily. This tool was designed to give you

the ultimate performance when working on

projects.

The Dremel 4300 is the MOST versatile rotary

tool available today. It has a wide speed range

including a high performance motor with

electronic feedback that allows the tool to

maintain its speed under load. The design of

the tool is symmetrical and contains plenty of

soft grip so the tool can be held comfortably in

many positions. The inclusion of the Dremel

Chuck allows you to use any shank size

accessory from 1/32” to 1/8” so that you don’t

have to change collets when you change to a

different size accessory. In addition, the

included worklight will help you see every detail

as you work on your project. You will appreciate

the many applications that the Dremel 4300

can easily tackle.

Rotary Tool Introduction

The Rotary Tool has a small, powerful electric

universal motor, is comfort able in the hand, and

is made to accept a large variety of accessories

including abrasive wheels, drill bits, wire

brushes, polishing accessories, engraving

cutters, router bits, cutting wheels and

attachments. Accessories come in a variety of

shapes and permit you to do a number of

different jobs. As you be come familiar with the

range of accessories and their uses, you will

learn just how versatile the Rotary Tool is. You’ll

see dozens of uses you hadn’t thought of

before.

The real secret of the Rotary Tool is its speed.

To understand the advantages of its high

speed, you have to know that the standard

portable electric drill runs at speeds up to 2,800

revolutions per minute. The Rotary Tool

operates at speeds up to 35,000 revolutions

per minute. The typical electric drill is a low-

speed, high torque tool; the Rotary Tool is just

the opposite – a high-speed, low torque tool.

The major difference to the user is that in the

high speed tools, the speed combined with the

acces sory mounted in the chuck or collet does

the work. You don’t apply pressure to the tool,

but simply hold and guide it. In the low speed

tools, you not only guide the tool, but also apply

pressure to it, as you do, for example, when

drilling a hole.

It is this high speed, along with its compact size

and wide variety of special accessories and

attachments, that makes the Rotary Tool differ -

ent from other tools. The speed enables it to do

jobs low speed tools cannot do, such as cutting

hardened steel, en graving glass, etc.

Getting the most out of your Rotary Tool is a

matter of learning how to let this speed work for

you. To learn about more uses and the

versatility of Dremel accessories and

attachments refer to this Owner's Manual or

check our website at www.Dremel.com or join

the conversation at facebook.com/dremel.

Using the Rotary Tool

The first step in learning to use the Rotary Tool

is to get the “feel” of it. Hold it in your hand and

feel its weight and balance. Feel the taper of

the housing. This taper permits the Rotary Tool

to be grasped much like a pen or pencil

(Fig. 7).

Always hold the tool

away from your face.

Accessories can be

damaged during

handling, and can fly

apart as they come up

to speed. This is not

common, but it does happen.

Whenever you hold the

tool, be careful not to

cover the air vents with your hand. This

blocks the air flow and causes the motor to

overheat.

Practice on scrap materials first to see how the

Rotary Tool's high speed action performs. Keep

in mind that the work is done by the speed of

the tool and by the accessory in the collet. You

should not lean on or push the tool during use.

Instead, lower the spinning accessory lightly to

the work and allow it to touch the point at which

you want cutting (or sanding or etching, etc.) to

begin. Con centrate on guiding the tool over the

work using very little pressure from your hand.

Allow the accessory to do the work.

For best control in close or detailed work, grip

the Rotary Tool like a pencil between your

thumb and forefinger (Fig. 7).

The “Golf Grip” method of holding the tool is

used for more aggressive operations such as

grinding a flat surface or using cutoff wheels

(Fig. 8).

Usually, it is best to make a series of passes

with the tool rather than attempt to do all the

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 14

15

work in one pass. To make a cut, for example,

p

ass the tool back and forth over the work,

much as you would a small paint brush. Cut a

little material on each pass until you reach the

desired depth. For most work, the gentle

touch is best. With it, you have the best

control, are less likely to make errors, and will

get the most effi cient work out of the

accessory.

TOOL HANGER

T

he hanger is provided for the use of hanging

your tool while using the Flex Shaft or for

storage. If you do not use the hanger, snap it

back into place so it will be out of the way while

the tool is in use (Fig. 1).

Questions or Problems? Call 1-800-437-3635

or check our website at www.Dremel.com

FIG. 8FIG. 7

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 15

16

Needs for Slower Speeds

Certain materials, however, (some plastics and

precious metals, for ex ample) require a

relatively slow speed because at high speed

the friction of the accessory generates heat

and may cause damage to the material.

Slow speeds (15,000 RPM or less) usually are

best for polishing operations employing the felt

polishing ac ces sories. They may also be best

for working on deli cate projects as “eggery”

work, delicate wood carving and fragile model

parts. (All brushing applications require lower

speeds to avoid wire discharge from the

holder.)

Higher speeds are better for carving, cutting,

routing, shaping, cutting dadoes or rabbets in

wood.

Hardwoods, metals and glass require high

speed operation, and drilling should also be

done at high speeds.

The point to remember is this: Many

applications and accessories in our line will

provide the best performance at full speed, but

for certain materials, applications, and

accessories, you need slower speeds, which is

the reason our variable speed models are

available.

To select the right speed for each job, use a

practice piece of material.

NOTE: Speed is affected by voltage

changes. A reduced incoming voltage will

slow the RPM of the tool.

SLIDE "ON/OFF" SWITCH

The tool is switched "ON" by the slide switch

located on the topside of the motor housing.

TO TURN THE TOOL "ON", slide the switch

button forward.

TO TURN THE TOOL "OFF", slide the switch

button backward.

HIGH PERFORMANCE MOTOR

Your tool is equipped with a high performance

rotary tool motor. This motor expands the

versatility of the rotary tool by driving additional

attachments such as the Dremel Right Angle

Attachment and Dremel Flex Shaft.

ELECTRONIC FEEDBACK

Your tool is equipped with an internal electronic

feedback system that provides a “soft start”,

which will reduce the stresses that occur from

a high torque start. The system also helps to

keep the preselected speed virtually constant

between no-load and load conditions.

VARIABLE SPEED DIAL

Your tool is equipped with a variable speed

dial. The speed may be adjusted during

operation by presetting the dial on or

between any one of the settings.

You can refer to the charts on pages 27–30

to determine the proper speed, based on the

material being worked and the type of

a

ccessory being used. These charts enable

you to select both the correct acces sory and

the optimum speed at a glance.

The speed of Rotary Tool is controlled by

setting this dial on the housing (Fig. 9).

Settings for Approximate Revolutions.

Switch Setting Speed Range

*5–10 5,000-10,000 RPM

15 13,000-17,000 RPM

20 18,000-23,000 RPM

25 23,000-27,000 RPM

30 28,000-32,000 RPM

35 33,000-35,000 RPM

* Wire Brush Setting.

Operating Speeds

FIG. 9

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 16

17

Service

Preventive maintenance

pe r formed by

unauthorized per so n nel may result in

misplacing of internal wires and

components which could cause serious

hazard. We recommend that all tool service

be performed by a Dremel Service Facility.

To avoid injury from

unexpected starting or

electrical shock, always remove plug from

wall outlet before performing service or

cleaning.

CARBON BRUSHES

The brushes and commutator in your tool

have been engineered for many hours of

dependable service.

In order to prepare your brushes for use, run

your tool at full speed for 5 minutes under no

load. This will properly “seat” your brushes,

which extends the life of both your brushes

and your tool.

To maintain peak efficiency of the motor, we

recommend every 40 - 50 hours the brush es

be examined. Only genuine Dremel replace -

ment brushes specially designed for your tool

should be used.

MAINTENANCE OF REPLACEABLE

BRUSHES ON MODEL 4300

The brushes should be inspected frequently

when tools are used continuously. If your tool

runs spo rad ically, loses power, makes

unusual noises or runs at a reduced speed,

check the brushes.

To continue using the

tool in this condition

will permanently damage your tool.

Follow these steps to check/change the

rotary tool brushes:

1. With the power cord unplugged, place the

tool on a clean surface. Use the tool

wrench as a screwdriver to remove the

brush caps in a counter-clockwise

direction (Fig. 10).

Maintenance Information

To aid you in determining the optimum

o

perational speed for differ ent materials and

different accessories, we have constructed a

series of tables that appear on pages 27–30.

By referring to these tables, you can discover

the recommended speeds for each type of

accessory. Look these tables over and

become familiar with them.

Ultimately, the best way to determine the

correct speed for work on any material is to

practice for a few minutes on a piece of scrap,

even after referring to the chart. You can

quickly learn that a slower or faster speed is

more effective just by observing what hap pens

as you make a pass or two at different speeds.

When working with plastic, for example, start

at a slow rate of speed and increase the speed

until you observe that the plastic is melting at

the point of contact. Then reduce the speed

slight ly to get the optimum working speed.

Some rules of thumb in regard to speed:

1. Plastic and other materials that melt at low

temperatures should be cut at low speeds.

2. Polishing, buffing and cleaning with any

t

ype of bristle brush must be done at

speeds not greater than 15,000 RPM to

prevent damage to the brush.

3. Wood should be cut at high speed.

4. Iron or steel should be cut at high speed. If

a high speed steel cutter starts to chatter —

this normally means it is running too slow.

5. Aluminum, copper alloys, lead alloys, zinc

alloys and tin may be cut at various

speeds, depending on the type of cutting

being done. Use paraffin or other suitable

lubricant on the cutter to prevent the cut

material from adhering to the cutter teeth.

Increasing the pressure on the tool is not the

answer when it is not performing as you think it

should. Perhaps you should be using a

different accessory, and perhaps an

adjustment in speed would solve the problem.

Leaning on the tool does not help.

Let speed do the work!

Use only Dremel

®

, high-performance accessories.

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 17

18

Extension Cords

2. Remove the brushes from the tool by

p

ulling on the spring that is attached to the

carbon brush. If the brush is less than 1/8"

long and the end surface of the brush that

contacts the commutator is rough and/or

pitted, they should be replaced. Check

both brushes (Fig. 11).

Usually the brushes will not wear out simul -

taneously. If one brush is worn out, replace

both brushes. Make sure the brushes are

installed as illus trated. The curved surface of

the brush must match the curvature of the

commutator. Also check that the brush caps

sit flush with the tool housing.

3. After replacing brushes the tool should be

run at no-load; place it on a clean surface

and run it freely at full speed for 5 minutes

before loading (or using) the tool. This will

allow the brushes to “seat” properly and

will give you more hours of life from each

set of brushes. This will also extend the

total life of your tool since the com mutator

surface will “wear” longer.

BEARINGS

Model 4300 has ball bearing construction.

Under normal use no additional lubrication is

required.

Cleaning

To avoid accidents

always dis connect the

tool from the power supply before

cleaning or performing any main tenance.

The tool may be cleaned most effectively

with compressed dry air. Always wear

safety gog gles when cleaning tools with

compressed air.

Ventilation openings and switch levers must

be kept clean and free of foreign matter. Do

not at tempt to clean by inserting pointed

objects through openings.

Certain cleaning agents

and solvents damage

plastic parts. Some of these are: gasoline,

carbon tetrachloride, chlo rinated cleaning

solvents, ammonia and household

detergents that contain ammonia.

If an extension cord is

necessary, a cord with

adequate size conductors that is capable

of carrying the current necessary for your

tool must be used. This will prevent

excessive voltage drop, loss of power or

overheating. Grounded tools must use 3-wire

extension cords that have 3-prong plugs and

receptacles.

NOTE: The smaller the gauge number, the

higher the cord capacity.

RECOMMENDED SIZES OF EXTENSION CORDS

120 VOLT ALTERNATING CURRENT TOOLS

FIG. 10

BRUSH

BRUSH SPRING

BRUSH CAP

Curved end of brush

must match curvature of

commutator

FIG. 11

Tool’s

Ampere

Rating

Cord Size in A.W.G. Wire Sizes in mm

2

Cord Length in Feet Cord Length in Meters

25 50 100 150

15 30 60 120

3-6

6-8

8-10

10-12

12-16

18

16

14

16

12

16

14

–

14

12

–

0.75

1.0

–

0.75

1.0

2.5

–

1.5

2.5

4.0

–

2.5

4.0

–

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 18

19

COLLETS

If you expect to use a variety of accessories,

we recommend that in the beginning you

purchase a complete set of four collets. Store

these so that you will have the proper size of

collet for any accessory or drill bit you want

to use. Currently, the 1/8", 3/32",1/32" and

1/16" collets accommodate all of the avail -

able Dremel accessories. 1/8" collets are

included in most rotary tool kits.

MANDRELS

A mandrel is a shank with a threaded or screw

head, which are required when you use

polishing accessories, cutting wheels, sanding

discs, and pol ish ing points. The reason

mandrels are used is that sanding discs,

cutting wheels and similar accesso ries must

be replaced frequently. The mandrel is a per -

manent shank, allowing you to replace only

the worn head when necessary, thus saving

the expense of replacing the shaft each time.

Screw Mandrel No 401

This is a screw mandrel used with the felt

polishing tip and felt polishing wheels. 1/8"

shank.

Small Screw Mandrel No 402

This is a mandrel with a small screw at its tip,

and is used with emery and fiberglass cutting

wheels, sanding discs and polishing wheels.

1/8" shank.

EZ Lock Mandrel No 402

The Dremel EZ Lock makes accessory

changes easy as PULL - TWIST - RELEASE.

The one-piece mandrel design simplifies the

process of changing cutting wheels, buffs

and detail abrasive brushes (EZ Lock

compatible accessories).

EZ Drum™ Mandrel No EZ407SA

The Dremel EZ Drum makes accessory

changes easy as PULL - INSERT - PRESS

DOWN. The one-piece mandrel design

simplifies the process of changing sanding

bands.

High Speed Cutters

Available in many shapes, high speed cutters

are used in carving, cutting and slotting in

wood, plastics and soft metals such as

aluminum, copper and brass. These are the

accessories to use for freehand routing or

carving in wood or plastic, and for precision

cutting. Made of high quality steel. 1/8"

shank.

Tungsten Carbide Cutters

These are tough, long-lived cutters for use

on hard ened steel, fired ceramics and other

very hard ma terials. They can be used for

engraving on tools and garden equipment.

1/8" shanks.

Dremel Accessories

Use only Dremel

®

, high-performance accessories. Other accessories are

not designed for this tool and may lead to personal injury or property damage.

Store accessories in a dry and temperate environment to avoid corrosion and deterioration.

The number and variety of accessories for the Rotary Tool are almost limitless. There is a category

suited to almost any job you might have to do and a variety of sizes and shapes within each

category which en ables you to get the perfect accessory for every need.

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 19

20

Engraving Cutters

This group has a wide variety of sizes and

shapes, and are made for intricate work on

ceramics (greenware), wood carvings,

jewelry and scrimshaw. They often are used

in making complicat ed printed circuit boards.

They should not be used on steel and other

very hard materials but are excellent on

wood, plastic and soft metals. 1/8" shank.

Structured Tooth

Tungsten Carbide Cutters

Fast cutting, needle-sharp teeth for greater

material removal with minimum loading. Use

on fiberglass, wood, plastic, epoxy and

rubber. 1/8" shank.

Aluminum Oxide Grinding Stones

(red/brown)

Round, pointed, flat — you name the shape

and there is one available in this category.

These are made of aluminum oxide and

cover virtually every possible kind of grinding

application. Use them for sharpening lawn

mower blades, screwdriver tips, knives,

scissors, chisels and other cutting tools. Use

to remove flash from metal castings,

deburring any metal after cutting, smoothing

welded joints, grinding off rivets and re mov ing

rust. These grinding stones can be resharped

with a dressing stone. In machine shops, high

speed drills and cut ters normally are ground

with aluminum oxide wheels. 1/8" shank.

Silicon Carbide Grinding Stones

(blue/green)

Tougher than aluminum oxide points, these

are made es pecially for use on hard

materials such as glass and ce ramics.

Typical uses might be the removal of stilt

marks and excess glaze on ceramics and

engraving on glass. 1/8" shank.

Diamond Wheel Points

Excellent for fine detail work on wood, jade,

ceramic, glass and other hard material. Bits

are covered with diamond particles. 1/8"

shanks. (Not recommended for drilling)

Wire Brushes

Maximum operating

speed 15,000/min. Allow

brush to run at 15,000/min for one minute

before use. Refer to Operating Speeds

section for proper tool speed setting.

Three different shapes of wire brushes are

available. The three shapes come in three

different materials: stainless steel, brass and

carbon wire. The stainless steel perform well

on pewter, aluminum, stainless steel, and

other metals, without leaving "after-rust".

Brass brushes are non sparking, and softer

than steel; making them good for use on soft

metal like gold, cooper and brass. The

carbon wire brushes are good for general

purpose cleaning.

Dremel Accessories (Continued)

1600A012FN.qxp_4300 1/30/17 10:06 AM Page 20

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