Dremel 9100 Manuel utilisateur

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Operating/Safety Instructions

Consignes de fonctionnement/sécurité

Instrucciones de funcionamiento y seguridad

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9100

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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

connecting 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

before 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 maximum speed

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.

Mandrel mounted wheels, sanding drums,

Safety Rules for Rotary Tools

2610Z04970.qxp_9100 1/30/17 10:59 AM Page 3

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cutters 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 power tool by insulated gripping

surfaces only, when performing an

operation where the cutting accessory may

contact hidden wiring. 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

while 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.

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

Safety Rules for Rotary Tools - (cont.)

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Safety Rules for Rotary Tools - (cont.)

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.

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.

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Additional Safety Warnings

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.

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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Symbols

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

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.)

n0No 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)

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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.

2610Z04970.qxp_9100 1/30/17 10:59 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.

Model number . . . . . . .9100

Voltage rating . . . . . . . .120V 60Hz

Amperage rating . . . . .2.5A

Rated speed . . . . . . . .n 23,000/min

Chuck capacities . . . . . .0-5/32"

Functional Description and Specifications

Model 9100 Fortiflex

ON/OFF

SWITCH

FIG. 1

TOOL

HANGER

OUTPUT

SHAFT

VARIABLE

SPEED FOOT

PEDAL

INNER SHAFT

COLLAR LOCKING

COLLAR

HAND PIECE

CHUCK KEY

MOUNTING

BRACKET

3 JAW CHUCK

MOTOR

UNIT

FLEXIBLE

SHAFT

OUTPUT

CONNECTOR

HEX KEY

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Always unplug Rotary

Tool before changing

accessories, changing collets or servicing

your Rotary Tool.

After changing bits or

making any adjustments,

make sure the chuck and any other

adjustment devices are securely tightened.

Loose adjustment device can unexpectedly

shift, causing loss of control, loose rotating

components will be violently thrown.

INSTALLING AND REMOVING HAND PIECES

Your Rotary Tool is equipped with a quick

disconnect system for hand pieces.

1. To install a hand piece, firmly grasp the new

hand piece in one hand and the knurled area

of flexible shaft in the other.

2. Align the base of hand piece to quick

disconnect.

3. Firmly press the hand piece onto the shaft

until you feel a “click”

4. To remove hand piece, simply pull firmly to

separate hand piece from flexible shaft

5. Secure hand piece in hanger when not in

use.

Assembly

CLICK

HAND PIECE SHAFT

FIG. 3

INSTALLING FLEXIBLE SHAFT

TO MOTOR UNIT

1. To install flexible shaft to motor unit, remove

hand piece by firmly pulling from flexible shaft

2. Loosen set screw on Inner Shaft Collar with

hex key provided.

3. Align set screw to flat on Motor Output Shaft

and push Inner Shaft Collar fully on.

4. Tighten set screw to secure Inner Shaft Collar

to Motor Output Shaft.

5. Tighten Locking Collar by rotating it counter

clockwise until it is snug against the motor

housing.

FIG. 4

CONNECTING MOTOR UNIT AND

VARIABLE SPEED FOOT PEDAL

1. To connect Motor Unit to power, with On/Off

switch in off position and foot pedal

unplugged, plug power cord from motor unit

into variable speed pedal.

2. With On/Off switch in off position and foot

pedal in free position, plug variable speed foot

pedal into wall outlet.

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Do not plug the motor

unit directly into wall

outlet. Always plug the motor unit into the

output connector of the Variable Speed

Foot Pedal. Operating accessory beyond its

speed rating will cause severe injury.

FIG. 5

MOUNTING THE MOTOR UNIT

1. To mount the motor unit, start by securely

fastening the mounting bracket to a wooden

structure with two(2) #8x1.5” wood screws.

2. Hang the motor unit on the bracket by

placing the tool hanger in the hook on the

mounting bracket.

DO NOT ATTACH

MOUNTING BRACKET

TO DRYWALL OR PEGBOARD. Mounting

area not strong enough to support the motor

unit leading to personal injury or property

damage.

INSTALLING AND REMOVING

ACCESSORIES FROM HAND PIECE

WITH 3 JAW CHUCK

(Not included in all kits)

1 Unplug tool from power source.

2. To install an accessory, open the 3 jaw chuck

as far as necessary by rotating the chuck key

counter clockwise.

3. Insert the accessory fully into the chuck to

minimize runout and unbalance.

4. Turn the chuck key clockwise to tighten the

jaws and secure and center the accessory.

5. If the accessory does not run true, reopen

the jaws, rotate the accessory ¼ turn and

retighten.

6. To remove an accessory, simply open the

jaws by turning the key counterclockwise and

pull out accessory.

3x

FIG. 7

FIG. 6

2610Z04970.qxp_9100 1/30/17 10:59 AM Page 11

INSTALLING AND REMOVING

ACCESSORIES FROM HAND PIECE WITH

COLLETS

(Not included in all kits)

COLLETS — Four different size collets (see

illustration), to accommodate different shank

sizes, are available 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.

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, polishers, 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 23,000 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 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.

Using the Rotary Tool

Do not operate the

flexible shaft with a

sharp or multiple bends. Ensure that there

are no sharp residual bends or kinks in the

flexible shaft before operation. Over

bending the shaft can generate excessive

heat on the jacket or hand piece. The

recommended minimum is 6" radius.

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.

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.

For best control in close work, grip the Rotary

Tool like a pencil between your thumb and

forefinger (Figure 9).

12

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. 1/8" (included in

most kits.)

WRENCH

COLLET

NUT

BIT

Operating Instructions

FIG. 9

FIG. 8

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The “Golf Grip” method of holding the tool is

used for more aggressive operations such as

grinding a flat surface or using cutoff wheels

(Figure 10).

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.

Usually, it is best to make a series of passes

with the tool rather than attempt to do all the

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

pass 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.

When you are finished working or hand piece

is not in use, always secure the hand piece by

hanging it on the mounting bracket (Fig. 6).

To select the right speed for each job, use a

practice piece of material.

TURNING THE TOOL ON AND OFF

The tool is switched "ON" by the slide switch

located on the topside of the motor unit.

TO TURN THE TOOL "ON", slide the “On/Off”

switch button to the right, depress variable

speed foot pedal for continuous variable

speed.

TO TURN THE TOOL "OFF", simple release

the variable speed foot pedal and slide the

“On/Off” switch button to the left.

VARIABLE SPEED FOOT PEDAL

OPERATION

1. With On/Off switch in the “I” position, hand

piece in your hand, and accessory free from

the work piece, depress variable speed

pedal to activate motor.

2. Pressing the pedal further down will

increase the motor speed releasing the

pedal will decrease the speed. Pedal

requires continuous pressure to maintain

motor speed.

3. To stop the motor simply release the foot

pedal completely.

4. Slide On/Off switch to “0” prior to securing

hand piece by hanger.

NOTE: 15,000/min is achieved at around the

half way point of the pedal travel.

Operating Speeds

FIG. 10

0/min

n 23,000/min

FIG. 12

ONOFF

FIG. 11

ON/OFF

SWITCH

“O” “I”

2610Z04970.qxp_9100 1/30/17 10:59 AM Page 13

14

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.

Do not press the Variable

Speed Foot Pedal more

than half way when using wire brushes.

Operating wire brushes at speed higher than

15,000/min (RPM) may lead to personal injury

or property damage.

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.

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.

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 type

of bristle brush must be done at speeds not

greater than 15,000 RPM to prevent damage

to the brush from bristles flying toward

operator.

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.

2610Z04970.qxp_9100 1/30/17 10:59 AM Page 14

15

Service

Preventive maintenance

pe r formed by unautho -

rized 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.

Excessive sparking is a sign of worn out carbon

brushes. Your brushes can be replaced by an

authorized Dremel Service Center.

BEARINGS

Model 9100 has ball bearing construction.

Under normal use no additional lubrication is

required.

FLEXIBLE SHAFT LUBRICATION

The flex-shaft should be lubricated after every

50 hours of use. To lubricate, disconnect the

flexible shaft assembly from the motor

housing. Pull the center core out of the flexible

shaft assembly. Wipe a very thin film

automotive wheel bearing grease on to the

center core and reinsert it back into the shaft.

To prevent damage to tool do not over grease

shaft. Too much grease will cause the unit to

overheat.

Reattach the flexible shaft to motor unit.

The flexible shaft inner core may fail after

many hours of continuous use; replacement

parts are available by contacting an authorized

Dremel Service Center.

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 sol vents damage

plastic parts. Some of these are: gasoline,

carbon tetrachlo ride, chlo rinated cleaning

solvents, ammonia and house hold detergents

that contain ammonia.

Maintenance Information

Extension Cords

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

Tool’s

Ampere

Rating

Cord Size in A.W.G. Wire Sizes in mm2

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

–

2610Z04970.qxp_9100 1/30/17 10:59 AM Page 15

16

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.

Dremel Accessories

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 materials. They can be used for

engraving on tools and garden equipment.

1/8" shanks.

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.

2610Z04970.qxp_9100 1/30/17 10:59 AM Page 16

17

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.

Bristle Brushes

These are excellent cleaning tools on

silverware, jew elry and antiques. The three

shapes make it possible to get into tight

corners and other difficult places. Bristle

brushes can be used with polishing

compound for faster cleaning or polishing.

Brushing Pressure

1. Remember, the tips of a wire brush do the

work. Operate the brush with the lightest

pressure so only the tips of the wire come

in contact with the work.

2. If heavier pressures are used, the wires

will be overstressed, resulting in a wiping

action; and if this is continued, the life of

the brush will be shortened due to wire

fatigue.

INCORRECT:

Excessive pressure can cause wire breakage.

CORRECT: Wire tips doing the work.

2610Z04970.qxp_9100 1/30/17 10:59 AM Page 17

18

3. Apply the brush to the work in such a way

that as much of the brush face as possible

is in full contact with the work. Applying

the side or edge of the brush to the work

will result in wire breakage and shortened

brush life.

Polishing Accessories

These include an impregnated polishing

point and an impregnated polishing wheel for

bringing metal sur faces to smooth finish; a

felt polishing tip and felt polish ing wheel, and

cloth polishing wheel, all used for polishing

plastics, metals, jewelry and small parts.

Also included in this group is a polishing

compound (No. 421) for use with the felt and

cloth polishers.

Polishing points make a very smooth

surface, but a high luster is obtained using

felt or cloth wheels and polishing compound.

For best results polishing accessories

should be used at speeds not greater

than 15,000 RPM.

No polishing compound is needed when

using the 425 Polishing Wheel.

Aluminum Oxide Abrasive Wheels

Use to remove paint, deburr metal, polish

stainless steel and other metals. Available in

medium grit. 1/8" shank.

Sanding Accessories

Sanding discs in fine, medium and coarse

grades are made to fit mandrel No. 402 and

EZ407. They can be used for nearly any

small sanding job you might have, from

model making to fine furniture finish ing. In

addition, there is the drum sander, a tiny

drum which fits into the Rotary Tool and

makes it possible to shape wood, smooth

fiberglass, sand inside curves and other diffi -

cult places, and other sanding jobs. You

replace the sanding bands on the drum as

they become worn and lose their grit. Bands

come in fine medium and coarse grades.

Flapwheels grind and polish flat or contoured

surfaces. They are used most effectively as a

finishing sander after heavier surface

sanding and material removal is completed.

Flapwheels come in fine and coarse grades.

Buffs are a great finishing accessory for

cleaning and light sanding. They work

effectively on metal, glass, wood, aluminum

and plastics. Coarse and medium buffs are

sold together. All buffs are sold individually.

Do not exceed 15,000 RPM in speed. 1/8"

shank.

Grinding Wheel

Use for deburring, removing rust, and general

purpose grinding. Use with Mandrel #402.

Cutting Wheels

These thin discs of emery or fiberglass are

used for slicing, cutting off and similar

operations. Use them for cutting off frozen

bolt heads and nuts, or to reslot a screw

head which has become so damaged that

the screwdriver won’t work in it. Fine for

cutting BX cable, small rods, tubing, cable

and cutting rectangular holes in sheet metal.

2610Z04970.qxp_9100 1/30/17 10:59 AM Page 18

19

Mandrel N° 402 has a small screw at its tip,

and is used with emery cutting wheels and

sanding discs. Higher speeds, usually

maximum, are best for most work, including

cutting steel. Which is shown here.

Mandrel No. 401 is used with the felt

polishing tip and wheels. Thread the tip on to

the screw carefully. The felt tip must thread

down straight on the screw Mandrel, and be

turned all the way to the collar.

To replace a band on the Drum Sander, loosen

the screw without removing it to contract the

drum then slide the old band off. Slide the new

sanding band on and then expand the drum by

tightening the screw once again.

Before each use, check

to make certain that all

components are assembled to accessory

shank and that the drum is sufficiently

expanded to secure the band during use. If

sanding band is loose on the drum during

operation it may “fly” off and strike you or

bystanders.

Replacing Screw Mandrel Accessories

2610Z04970.qxp_9100 1/30/17 10:59 AM Page 19

20

EZ Lock™Operating Instructions

EZ Lock™Mandrel No. EZ402 has a spring

loaded sleeve and is used with cutting

wheels, abrasive buffs and polishing cloth.

Always make sure the

rotary tool is “OFF” and

disconnect the plug from the power

source or the battery pack from the tool

before changing accessories. Such

preventative safety measures reduce the risk

of starting the power tool accidentally.

Always make sure accessory is properly

seated on mandrel before use. Incorrect

seating of accessory on mandrel may lead to

personal injury or property damage.

To load accessory:

1. Place EZ Lock™ mandrel into collet as

deep as possible and tighten collet nut.

Note: There is a blue spacer that will

bottom out on the collet nut, setting the

mandrel to the correct depth. When using

with Dremel chuck, back the mandrel out

slightly before tightening.

2. Pull spring-loaded sleeve DOWN towards

tool with one hand and hold. You can

brace the tool on the body or work-bench

for extra leverage (Fig. 1).

3. With the other hand, align bowtie shape on

cut-off wheel with mandrel and make sure

metal insert is facing away from the tool

(Fig. 2).

4. Place wheel on the mandrel to a point just

below the bowtie on the mandrel and twist

90 degrees until the bowtie shape on the

wheel aligns with the sleeve. Release

sleeve. Wheel should lock in place (Fig. 3).

5. When mounting sanding and polishing

accessories, align bowtie with metal insert

on bottom of accessory (Fig. 4 & 5).

To check for proper seating, hold shaft

lock button and twist accessory.

Accessory will not be able to rotate on

mandrel.

To unload accessory:

1. Pull spring-loaded sleeve DOWN toward

tool with one hand (Fig. 1).

2. Hold sleeve down while twisting accessory

90 degrees.

3. Remove accessory.

During use

Avoid damage to EZ lock™ mandrel by not

letting it contact the workpiece.

FIG. 4

FIG. 5

FIG. 2

FIG. 3

FIG. 1

2610Z04970.qxp_9100 1/30/17 10:59 AM Page 20

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