Delta 18-900L Le manuel du propriétaire

Marque: Delta

Modèle: 18-900L

Taper: Le manuel du propriétaire

Instruction manual

Manuel d’utilisation

Manual de instrucciones

18-900L

www.DeltaMachinery.com

Français (23)

Español (45)

INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO

Y PÓLIZA DE GARANTÍA.

LÉASE ESTE

INSTRUCTIVO ANTES DE USAR EL PRODUCTO.

18" (457 mm) Drill Press

WiTH lAsers

Perceuse à Colonne de

457 mm (18 po) Avec Lasers

Taladro de banco de

457 mm (18 pulg) Con lásers

CROSSHAIR

OBJETIVO CRUZ

CIBLE CROISÉE

TABLE OF CONTENTS

IMPORTANT SAFETY INSTRUCTIONS

Read and understand all warnings and operation instructions before using any tool

or equipment. Always follow basic safety precautions to reduce the risk of personal injury. Improper

operation, maintenance or modification of tools or equipment could result in serious injury and property

damage. There are certain applications for which tools and equipment are designed. This product

should NOT be modified and/or used for any application other than for which it was designed.

If you have any questions relative to its application DO NOT use the product until you have written DELTA® Power

Equipment Corporation and we have advised you. Contact us online at www.DeltaMachinery.com or by mail at Technical

Service Manager, DELTA® Power Equipment Corporation , 2651 New Cut Road, Spartanburg, SC 29303.

Information regarding the safe and proper operation of this tool is available from the following sources:

• Power Tool Institute, 1300 Sumner Avenue, Cleveland, OH 44115-2851or online at www.powertoolinstitute.com

• National Safety Council, 1121 Spring Lake Drive, Itasca, IL 60143-3201

•

American

National Standards Institute, 25 West 43rd Street, 4 oor, New York, NY 10036 www.ansi.org - ANSI 01.1

Safety Requirements for Woodworking Machines

• U.S. Department of Labor regulations www.osha.gov

SAVE THESE INSTRUCTIONS!

SAFETY GUIDELINES - DEFINITIONS

It is important for you to read and understand this manual. The information it contains relates to protecting YOUR SAFETY

and PREVENTING PROBLEMS. The symbols below are used to help you recognize this information.

indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

ni dicates a potential dra zah yl ous situation which, if not avoided, may result in minor or mo re d ate injury.

NOTICE

AVIS

AVISO

ecitcarp a setacidni not related to personal injury which, if not avoided, may result in property

damage.

Some dust created by power sanding, sawing, grinding, drilling, and other construction activities

contains chemicals known to the State of California 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

rA • senic and chromium from chemically-treated lumber (CCA).

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 dust masks that are specially

designed t

IMPORTANT SAFETY INSTRUCTIONS ..........................2

SAFETY GUIDELINES - DEFINITIONS ...........................2

GENERAL SAFETY RULES .............................................3

ADDITIONAL SPECIFIC SAFETY RULES ......................4

ADDITIONAL SAFETY RULES FOR THE LASERS ........4

FUNCTIONAL DESCRIPTION .........................................6

CARTON CONTENTS .......................................................7

ASS

EMBLY ........................................................................8

OPERATION ...................................................................13

TROUBLESHOOTING ...................................................21

MAINTENANCE .............................................................21

SERVICE .........................................................................22

ACCESSORIES ..............................................................22

WARRANTY ..................

.................................................22

FRANÇAIS ......................................................................23

ESPAÑOL .......................................................................45

GENERAL SAFETY RULES

Failure to follow these rules may result in serious personal injury.

1.For your own safety, read the instruction manual

before operating the machine. Learning the

machine’s application, limitations, and specic hazards

will greatly minimize the possibility of accidents and

injury.

2. Wear eye and hearing protection and always use

safety glasses. Everyday eyeglasses are not safety

glasses.Usecertiedsafetyequipment.Eyeprotection

equipmentshould complywithANSI Z87.1 standards.

Hearing equipment shouldcomplywithANSI S3.19

standards.

3. Wear proper apparel. Do not wear loose clothing,

gloves, neckties, rings, bracelets, or other jewelry

which may get caught in moving parts. Nonslip

protective footwearisrecommended.Wearprotective

hair covering to contain long hair.

4. Do not use the machine in a dangerous

environment. The use of power tools in damp or wet

locations or in rain can cause shock or electrocution.

Keepyourwork areawell-lit toprevent tripping or

placing arms, hands, and ngers in danger.

5. Do not operate electric tools near flammable

liquids or in gaseous or explosive atmospheres.

Motors and switches in these tools may spark and

ignite fumes.

6. Maintain all tools and machines in peak condition.

Keep tools sharp and clean for best and safest

performance.Followinstructions for lubricatingand

changing accessories. Poorly maintained tools and

machines can further damage the tool or machine and/

or cause injury.

7. Check for damaged parts. Before using the machine,

check for any damaged parts. Check for alignment

of moving parts, binding of moving parts, breakage

of parts, and any other conditions that may affect its

operation. A guard or any other part that is damaged

should be properly repaired or replaced with DELTA®

or factory authorized replacement parts. Damaged

parts can cause further damage to the machine and/or

injury.

8. Keep the work area clean. Cluttered areas and

benches invite accidents.

9. Keep children and visitors away. Yourshop isa

potentially dangerous environment. Children and

visitors can be injured.

10. Reduce the risk of unintentional starting. Make sure

that the switch is in the “OFF” position before plugging

in the power cord. In the event of a power failure, move

the switch to the “OFF”position.Anaccidentalstart-up

can cause injury. Do not touch the plug’s metal prongs

when unplugging or plugging in the cord.

11. Use the guards. Check to see that all safety devices

are in place, secured, and working correctly to prevent

injury.

12. Remove adjusting keys and wrenches before

starting the machine. Tools, scrap pieces, and other

debris can be thrown at high speed, causing injury.

13. Use the right machine. Don’t force a machine or an

attachment to do a job for which it was not designed.

Damage to the machine and/or injury may result.

14. Use recommended accessories. The use of

accessories and attachments not recommended by

DELTA® may cause damage to the machine or injury

to the user.

15. Use the proper extension cord. Make sure your

extensioncordis in good condition.Whenusing an

extensioncord,be suretouse oneheavyenoughto

carry the current your product will draw. An undersized

cord will cause a drop in line voltage, resulting in loss

ofpowerand overheating. See the ExtensionCord

Chart for the correct size depending on the cord length

andnameplateampererating.Ifindoubt,usethenext

heavier gauge. The smaller the gauge number, the

heavier the cord.

16. Secure the workpiece. Useclampsoravisetohold

the workpiece when practical. Loss of control of a

workpiece can cause injury.

1 7.  Feed the workpiece against the direction of the

rotation of the blade, cutter, or abrasive surface.

Feeding it fromthe other direction will cause the

workpiece to be thrown out at high speed.

18. Don’t force the workpiece on the machine. Damage

to the machine and/or injury may result.

19. Don’t overreach. Loss of balance can make you fall

into a working machine, causing injury.

20. Never stand on the machine. Injury could occur if the

tool tips, or if you accidentally contact the cutting tool.

2 1. Never leave the machine running unattended. Tur n

the power off. Don’t leave the machine until it comes to

a complete stop. A child or visitor could be injured.

22. Turn the machine “OFF”, and disconnect the

machine from the power source before installing or

removing accessories, changing cutters, adjusting

or changing set-ups. When making repairs, be

sure to lock the start switch in the “OFF” position. An

accidentalstart-upcancauseinjury.

23. Make your workshop childproof with padlocks,

master switches, or by removing starter keys. The

accidentalstart-up ofa machine bya childor visitor

could cause injury.

24. Stay alert, watch what you are doing, and use

common sense. Do not use the machine when you

aretiredor under the inuence ofdrugs, alcohol, or

medication. A moment of inattention while operating

power tools may result in injury.

25.

Use of this tool can generate and

disperse dust or other airborne particles, including

wood dust, crystalline silica dust and asbestos

dust. Direct particles away from face and body.

Always operate tool in well ventilated area and provide

for properdust removal.  Usedust collection system

whereverpossible. Exposuretothe dustmaycause

serious and permanent respiratory or other injury,

includingsilicosis(aseriouslungdisease),cancer,and

death. Avoid breathing the dust, and avoid prolonged

contact with dust. Allowing dust to get into your mouth

or eyes, or lay on your skin may promote absorption

of harmful material. Always use properly tting NIOSH/

OSHA approved respiratory protection appropriate for

thedustexposure,andwashexposedareaswithsoap

and water.

GENERAL SAFETY RULES

ADDITIONAL SPECIFIC SAFETY RULES

1. DO NOT OPERATE THIS MACHINE until it is completely

assembled and installed according to the instructions.

A machine incorrectly assembled can cause serious injury.

2. OBTAIN ADVICE from your supervisor, instructor, or

another qualied person if you are not thoroughly familiar

with the operation of this machine. Knowledge is safety.

3. FOLLOW ALL WIRING CODES and recommended electrical

connections to prevent shock or electrocution.

4. SECURE THE MACHINE TO A SUPPORTING SURFACE.

Vibration can cause the machine to slide, walk, or tip over.

5. NEVER START THE MACHINE BEFORE CLEARING

THE TABLE OF ALL OBJECTS (tools,scrappieces,etc.).

Debris can be thrown at high speed.

6. NEVER START THE MACHINE with the drill bit, cutting

tool, or sanding drum against the workpiece. Loss of

control of the workpiece can cause serious injury.

7. PROPERLY LOCK THE DRILL BIT, CUTTING TOOL, OR

SANDING DRUM IN THE CHUCK before operating this

machine.

8. REMOVE THE CHUCK KEY BEFORE STARTING THE

MACHINE. The chuck key can be thrown out at a high

speed.

9. TIGHTEN ALL LOCK HANDLES before starting the machine.

Loss of control of the workpiece can cause serious injury.

10. USE ONLY DRILL BITS, CUTTING TOOLS, SANDING

DRUMS, OR OTHER ACCESSORIES with shank size

recommended in your instruction manual. The wrong size

accessory can cause damage to the machine and/or

serious injury.

11. USE ONLY DRILL BITS, CUTTING TOOLS, OR

SANDING DRUMS that are not damaged. Damaged items

can cause malfunctions that lead to injuries.

12. USE RECOMMENDED SPEEDS for all operations. Other

speeds may cause the machine to malfunction causing

damage to the machine and/or serious injury.

13. AVOID AWKWARD OPERATIONS AND HAND

POSITIONS. A sudden slip could cause a hand to move

into the bit.

14. KEEP ARMS, HANDS, AND FINGERS away from the bit.

Serious injury to the hand can occur.

15. HOLD THE WORKPIECE FIRMLY AGAINST THE TABLE.

Do not attempt to drill a workpiece that does not have a

atsurfaceagainstthe table,orthatisnot securedbya

vise. Prevent the workpiece from rotating by clamping it to

the table or by securing it against the drill press column.

Loss of control of the workpiece can cause serious injury.

16. TURN THE MACHINE “OFF” AND WAIT FOR THE DRILL

BIT, CUTTING TOOL, OR SANDING DRUM TO STOP

TURNING prior to cleaning the work area, removing

debris,removingor securing work-piece,or changing

the angle of the table. A moving drill bit, cutting tool, or

sanding drum can cause serious injury.

1 7.  PROPERLY SUPPORT LONG OR WIDE work-pieces.

Loss of control of the workpiece can cause severe injury.

18. DO NOT PLACE more than 250 pounds of weight on the

table.

19. NEVER PERFORM LAYOUT, ASSEMBLY OR SET-

UP WORK on the table/work area when the machine is

running. Serious injury can result.

20. TURN THE MACHINE “OFF”, disconnect the machine

from the power source, and clean the table/work area

before leaving the machine. LOCK THE SWITCH IN THE

“OFF” POSITION to prevent unauthorized use. Someone

else might accidentally start the machine and cause

serious injury to themselves.

2 1. ADDITIONAL INFORMATION regarding the safe

and proper operation of power tools (i.e. a safety

video)isavailablefromthe PowerToolInstitute,1300

SumnerAvenue, Cleveland, OH 44115-2851 (www.

powertoolinstitute.com). Information is also available

from the National Safety Council, 1121 Spring

LakeDrive,Itasca,IL60143-3201.Please refer tothe

American National StandardsInstituteANSI01.1Safety

Requirements for WoodworkingMachines and the

U.S.DepartmentofLaborOSHA1910.213Regulations.

FAILURE TO FOLLOW THESE RULES MAY RESULT IN SERIOUS INJURY.

ADDITIONAL SAFETY RULES FOR THE LASERS

SAFETY INSTRUCTIONS FOR LASERS

Read and understand all instructions. Failure to follow all instructions listed below may result in electric

shock, re and/or serious personal injury.

For your own safety, read the tool instruction manual before using any accessory. Failure to heed these warn-

ings may result in personal injury and serious damage to the tool and the accessory. When servicing this tool, use only iden-

tical replace ment parts.

LASER RADIATION EXPOSURE. Do not disassemble or modify the laser. There are no user serviceable parts

inside. Serious eye injury could result.

HAZARDOUS RADIATION.Useormodicationofthetoolforanythingotherthanitsdesignedpurposemayresultin

hazardousradiationexposure.

• Donotoperatethelaserinexplosiveatmospheres,suchasinthepresenceofammableliquids,gases,ordust.Powertoolscre-

ate sparks which may ignite the dust or fumes.

• Storeidlelaseroutofreachofchildrenandotheruntrainedpersons.Lasersaredangerousinthehandsofuntrainedusers.

• Toolservicemustbeperformedonlybyqualiedrepairpersonnel.Serviceormaintenanceperformedbyunqualiedpersonnelmay

resultininjury.TolocateyournearestDELTA®servicecentercall1-800-223-7278orgotowww.DeltaMachinery.com on the Internet.

• Donotuseopticaltoolssuchasatelescopeortransittoviewthelaserbeam.Seriouseyeinjurycouldresult.

• Donotstareintobeamaperture,orintoareectionfromamirror-likesurface

• Donotplacethelaserinapositionwhichmaycauseanyonetointentionallyorunintentionallystareintothelaserbeam.Serious

eye injury could result.

• Turnthelaseroffwhenitisnotinuse.Leavingthelaseronincreasestheriskofstaringintothelaserbeam.

• Donotdisassemblethelaserorlaserpowersupply.Therearenouserserviceablepartsinside.

• Donotmodifythelaserinanyway.ModifyingthetoolmayresultinHazardousLaserRadiationExposure.

• Donotoperatethelaseraroundchildrenorallowchildrentooperatethelaser.Seriouseyeinjurymayresult.

• Donotremoveordefacewarninglabels.Removinglabelsincreasestheriskofexposuretoradiation.

SAVE THESE INSTRUCTIONS.

Refer to them often and use them to instruct others.

HAZARDOUS RADIATION.Useormodi-

cation of the tool for anything other than its designed

purposemayresultinhazardousradiationexposure.

• Thelabelonyourtoolmayincludethefollowingsymbols.

V ................ volts mW ....... milliwatts

.....Laser warning nm ........ wavelength in

.....symbol ............. nanometers

II.................Class II Laser IIIa ........ Class IIIa

Laser

.............. alternating current ...... direct current

W ............... watts Hz ......... hertz

WARNING LABELS

Foryourconvenienceandsafety,thefollowinglabelisonyour

laser:

LASER APERTURES

Thelaserapertureoneachlaserpod(onbothsidesofthedrillpress

head)islocatedoneachpodasshowninFigureA.Also,thewarning

label is located on the drill press as shown:

Laser Apertures

Laser Warning Label

Fig. A

LASER SPECIFICATIONS

LIGHT SOURCE Dual semiconductor laser diode

LASER WAVELENGTH 630nm–680nmVisible

LASER POWER <1mw(eachbeam)CLASSII

LASERPRODUCT

POWER CONNECTIONS

Aseparateelectricalcircuitshouldbeusedforyourmachines.AsuitablecircuitshouldnotbelessthanAWG12/3wiring

where the ground wire is attached to an earth ground. The circuit should be protected by a circuit breaker or time delay

fuse. NOTE:Timedelayfusesshouldbemarked“D”inCanadaand“T”intheUS.Ifanextensioncordisused,useonly

3-wireextensioncordswhichhave3-pronggroundingtypeplugsandmatchingreceptaclewhichwillacceptthemachine’s

plug.Beforeconnectingthemachinetothepowerline,makesuretheswitch(s)isinthe“OFF”positionandbesurethat

the electric current is of the same characteristics as indicated on the machine. All line connections should make good

contact. Running on low voltage will damage the machine.

SHOCK HAZARD. Do not expose the machine to rain or operate the machine in damp locations.

MOTOR SPECIFICATIONS

Yourmachineiswiredfor120volt,60HZalternatingcurrent.Beforeconnectingthemachinetothepowersource,make

suretheswitchisinthe“OFF”position.

GROUNDING INSTRUCTIONS

SHOCK HAZARD. This machine must be grounded while in use to protect the operator from electric shock.

1. All grounded, cord-connected machines:

In the event of a malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce

theriskofelectricshock.Thismachineisequippedwithanelectriccordhavinganequipment-groundingconductorand

a grounding plug. The plug must be plugged into a matching outlet that is properly installed and grounded in accordance

with all local codes and ordinances.

Donotmodifytheplugprovided-ifitwillnotttheoutlet,havetheproperoutletinstalledbyaqualiedelectrician.

Improperconnectionof the equipment-grounding conductorcanresultin riskof electric shock.Theconductorwith

insulationhavingan outersurfacethat isgreenwith orwithoutyellowstripesisthe equipment-groundingconductor.If

repairorreplacementoftheelectriccordorplugisnecessary,donotconnecttheequipment-groundingconductortoalive

terminal.

Check with a qualied electrician or service personnel if the grounding instruction are not completely understood, or if in

doubt as to whether the machine is properly grounded.

Useonly3-wireextensioncordsthat have3-pronggrounding type plugs and matching 3-conductor receptaclesthat

acceptthemachine’splug,asshowninFig.B.

Repair or replace damaged or worn cord immediately.

EXTENSION CORDS

Use proper extension cords. Make sure your

extensioncordisingood conditionandisa 3-wireextension

cordwhich has a 3-pronggrounding typeplug and matching

receptaclewhichwillacceptthemachine’splug.Whenusingan

extensioncord,besuretouseoneheavyenoughtocarrythe

current of the machine. An undersized cord will cause a drop in

linevoltage,resultinginlossofpowerandoverheating.Fig.D

shows the correct gauge to use depending on the cord length. If

indoubt,use the nextheaviergauge.Thesmallerthe gauge

number, the heavier the cord.

Fig. D

MINIMUM GAUGE EXTENSION CORD

RECOMMENDEDSIZESFORUSEWITHSTATIONARYELECTRICMACHINES

Ampere Total Length Gauge of

Rating Volts of Cord in Feet Extension Cord

0-6 120

up to

25 18 AWG

0-6 120 25-50 16 AWG

0-6 120 50-100 16 AWG

0-6 120 100-150 14 AWG

6-10 120

up to

25 18 AWG

6-10 120 25-50 16 AWG

6-10 120 50-100 14 AWG

6-10 120 100-150 12 AWG

10-12 120

up to

25 16 AWG

10-12 120 25-50 16 AWG

10-12 120 50-100 14 AWG

10-12 120 100-150 12 AWG

12-16 120

up to

25 14 AWG

12-16 120 25-50 12 AWG

12-16 120

GREATERTHAN50FEETNOTRECOMMENDED

FOREWORD

DELTA®Model18-900L18"(457mm)DrillPressWithLasersisaheavy-dutymachinewitha3/4HP,120Vinduction

motor,5/8"capacitychuckandkey,castirontable,rackandpinionelevationmechanism,anexternaldepthstopandan

integratedquillstop.The18-900Lhasatiltingtableforangledrilling.Sideedgesandparallelslotsareprovidedforfast

workpiececlamping.Thelaserhelpsuserstargettheworkpieceexactlywherethedrillbitwillenterthematerial.

NOTICE: The manual cover illustrates the current production model. All other illustrations contained in the manual are

representative only and may not depict the actual labeling or accessories included. These are intended to illustrate

technique only.

FUNCTIONAL DESCRIPTION

FIG. B FIG.C

GROUNDED

OUTLET BOX

CURRENT

CARRYING

PRONGS

GROUNDING BLADE

IS LONGEST OF THE 3 BLADES

GROUNDED OUTLET BOX

GROUNDING

MEANS

ADAPTER

2. Grounded, cord-connected machines intended for use on a supply circuit having a nominal rating less than

150 volts:

IfthemachineisintendedforuseonacircuitthathasanoutletthatlooksliketheoneillustratedinFig.B, the machine

willhaveagroundingplugthatlooksliketheplugillustratedinFig. B. A temporary adapter, which looks like the adapter

illustrated inFig. C maybeused toconnect this plug toa matching 2-conductor receptacle asshownin Fig. C, ifa

properly grounded outlet is not available. The temporary adapter should be used only until a properly grounded outlet can

beinstalledbyaqualiedelectrician.Thegreen-coloredrigidear,lug,andthelike,extendingfromtheadaptermustbe

connectedtoapermanentgroundsuchasaproperlygroundedoutletbox.Whenevertheadapterisused,itmustbeheld

in place with a metal screw.

NOTE: In Canada, the use of a temporary adapter is not permitted by the Canadian Electric Code.

SHOCK HAZARD. In all cases, make certain that the receptacle in question is properly grounded. If you

are not sure, have a qualified electrician check the receptacle.

CARTON CONTENTS

UNPACKING AND CLEANING

Carefullyunpackthemachineandalllooseitemsfromtheshippingcontainer(s).Removetherust-preventativeoilfrom

unpainted surfaces using a soft cloth moistened with mineral spirits, paint thinner or denatured alcohol.

Do not use highly volatile solvents such as gasoline, naphtha, acetone or lacquer thinner for cleaning your machine.

To reduce the risk of injury, always use at least two people when lifting.

Aftercleaning,covertheunpaintedsurfaceswithagoodqualityhouseholdoorpastewax.

1. Base

2. Column

3. (2)Rackcollars

4. Rack

5. Table supports

6. Arbor

7. Table Clamp Handle

8. Belt tensioner handle

9. Table Raising and Lowering Handle

10. 0degreepin

11. Table

12. (4)M10x40mmSocketHeadCapScrews

13. LEDLight

14. Pinionshafthandles

15. Tableadjustmentwrenchanddriftkey

16. Chuck

17. Chuckkey

18. (6)Hexwrenches

19. (2)Forwardtiltknobsandwashers

20. M6x1Locknut

21. Buttonheadscrew

22. Lockwasher

23. Washer

24. Table tilt pointer

*Drillpresshead(notshown)

*Setscrewforbelttensionlevelhandle(notshown)

29" (737 mm) MINIMUM

24" (610 mm) MINIMUM

ATTACHING DRILL PRESS

TO SUPPORTING SURFACE

1. If you plan to use your drill press in a permanent

location, you must secure the drill press base to

thesupportingsurfacewithfasteners(notsupplied)

throughthefourmountingholes(A)Fig.1inthedrill

press base.

NOTE: To attach the base to the plywood, use the

following hardware: (4)M8x1.25x125mmcarriagehead

screws, (8)M8 at washers, (4)M8 lockwashers, and

(4)M8x1.25hexnuts.

RISK OF UNSAFE OPERATION. If your

drill press is not permanently fastened to the floor

it may be mounted to a plywood board to improve

stability and prevent tipping.

RISK OF UNSAFE OPERATION. Use a

good grade of plywood with a minimum 3/4" (19 mm)

thickness. Do not make the mounting board from

particle board since particle board breaks easily.

2. Use a plywood board base with the minimum

dimensionsasshowninFig.2formountingthedrill

pressbase(B)Fig.1toasupportingsurface.

3. Placethedrillpressbasecenteredontheplywood(D).

RISK OF UNSAFE OPERATION. Make

sure that the plywood extends a minimum of 3"

(76.2 mm) on all four sides of the base.

4. Markfourholes(C)Fig.2throughtheholes(A)Fig.

1 in the drill press base. Then drill 3/8" (9.5 mm)

diameter holes at these locations into the supporting

surface(D)Fig.2.

NOTE: Place a piece of scrap wood underneath the

supporting plywood surface when drilling the through

holes so that the drill bit will not damage the material

beneath the plywood supporting surface.

5. Fastenthedrillpressbasetothemountingplywood

board using the carriage bolts, at washers,

lockwashers, and hex nuts described above (not

supplied). Countersink the holes for the carriage

boltheadsandatwashersundertheboardsothat

the bolt heads are ush with or below the bottom

surface of the board after you insert them up through

the holes below the supporting surface. Use a at

washer, lock washer and  hex nut above the drill

press base to fasten the screws.

ASSEMBLY TOOLS REQUIRED

Hexwrenches(supplied)

Rubbermallet(notsupplied)

10mmwrench

Fig. 2

ASSEMBLY

To reduce the risk of injury, turn unit off and disconnect it from power source before installing and

removing accessories, before adjusting or when making repairs. An accidental start-up can cause injury.

ASSEMBLY TIME ESTIMATE

Assemblyforthismachinetakesapproximately30

minutesto1hour.

Fig. 1

ASSEMBLING DRILL PRESS PARTS

RISK OF UNSAFE OPERATION. If your

drill press is not permanently fastened to the floor

it may be mounted to a plywood board to improve

stability and prevent tipping.

To reduce the risk of injury, turn unit off

and disconnect it from power source before installing

and removing accessories, before adjusting or when

making repairs. Anaccidentalstart-upcancauseinjury.

1. Attachthecolumn(E)Fig.3tothebase(B)usingthe

fourM10x40mmsocketheadcapscrews(F),threeof

which are shown.

NOTE: Makesurescrew(G)(Fig.3inset)isorientedtothe

back of the drill press.

2. Attach the table raising and lowering handle(H)Fig.4to

thewormgearshaft(I).Tightenthesetscrew(J)against

theatontheshaftwiththe3mmhexwrenchsupplied.

3. Threadthetableclamphandle(K)Fig.5inthehole(L)

in rear of table bracket and secure tightly.

4. Alignthebolts(M)Fig.6onthetable(Q)withtheholes

inthetablesupport(N)andsetthe tableonthe table

supports.

NOTE: Be sure to properly orient your drill press table to the

columnasshowninFig.6A.

5. Install the washers and forward tilt knobs as shown in

Fig.7.Tightensecurely.

NOTE: The bolts in the trunnion are moveable. To install

knobsmoreeasily,insertaatheadscrewdriver(O)Fig.8in

the opening of the trunnion against the bolts to steady them.

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 6A

Fig. 7

Fig. 8

Fig. 12

Fig. 13

ASSEMBLING HEADSTOCK

TO COLUMN AND BASE

To assemble the headstock to the column:

1. Placethedrillpresshead(P)Fig.9onthecolumnasfar

as it will go.

NOTE:Besurethehead-lockingscrews(R)aredonotblock

the drill press head from fully seating on the column.

To reduce the risk of injury, always use at

least two people when lifting.

2. Align the head (P) Fig. 10with thetable(Q)and the

base(B).

3. Tightenthetwohead-lockingscrews(R)Fig.9withthe

5mmhexwrenchsupplied.

INSTALLING THE CHUCK

To reduce the risk of injury, turn unit off

and disconnect it from power source before installing

and removing accessories, before adjusting or when

making repairs. Anaccidentalstart-upcancauseinjury.

IMPORTANT: Make certain that the tapered hole in the

bottomofspindle (U)Fig. 11,and thetaperonthe spindle

adapter(V) areclean andfreeof grease,lacquer orrust-

preventive coatings.

NOTE: Remove the rust-preventative oil from the chuck

using a soft cloth moistened with mineral spirits, paint thinner

or denatured alcohol.

Push the spindle adapter (V) Fig. 11 into the spindle (U).

making certain that the tang (W) engages the mating slot

insidethespindle(U).

NOTICE

AVIS

AVISO

RISK OF PROPERTY DAMAGE. To avoid

damage to the laser, prevent the cleaning solution from

coming in contact with the laser pod. You can clean the

laser pod with a dry cotton cloth.

IMPORTANT:Makecertainthespindletaper(X)Fig.12,and

taperedholeinchuck(Y)arecleanandfreeofanygrease,

lacquer or rust preventive coatings.

NOTE: Remove the rust-preventative oil from the chuck

using a soft cloth moistened with mineral spirits, paint thinner

or denatured alcohol.

IMPORTANT: Rotate the chuck until the chuck jaws are fully

retracted inside the chuck. Hold the chuck on the taper of the

spindle.Tapitwithasoft-tiphammer(Z)Fig.13orablockof

wood and hammer to set the chuck.

NOTICE

AVIS

AVISO

RISK OF PROPERTY DAMAGE. To avoid

damage to the chuck, NEVER drive the chuck on the spindle

with a metal hammer.

Fig. 11

Fig. 9

Fig. 10

ATTACHING THE PINION SHAFT HANDLES

To reduce the risk of injury, turn unit off

and disconnect it from power source before installing

and removing accessories, before adjusting or when

making repairs. Anaccidentalstart-upcancauseinjury.

Threadthethreepinionshafthandles(AA)inthe three

holeslocatedinthepinionshafthub(BB)Fig.14.

ATTACHING THE

LED WORK LIGHT

To reduce the risk of injury, turn

unit off and disconnect it from power source

before installing and removing accessories,

before adjusting or when making repairs. An

accidentalstart-upcancauseinjury.

The included LED work light is to be attached to

thesideoftheheadstockatwire(CC)Fig.15.

NOTE: Prior to connection, be careful not to

pushwire(CC)intoheadstockasitisdifficultto

retrieve.

1. Removethree6 mmscrews(one shownat

DD)Fig.15.

2. Connectthe two wires— (CC) fromthe

headstockand(EE)fromthe LEDworklight

—asshowninFig.16.

3. Remove plastic cable tie.

4. Pushexcesswireintotheheadstock.

5. Attach theLED work light (FF) Fig. 17to

the headstock using three screws removed

earlier.Oneisshownat(DD).

6. Final assemblyof LED worklight(FF) looks

likeFigure18.

CHUCK KEY STORAGE

Storageforyourincludedchuckkey(GG)isbuiltintothe

right side of the drill press head stock. Press chuck key

intotheholderasshowninFigure19.

Fig. 19

T-SLOTS

ThedrillpresstableisttedwithtwoT-slots(HH)Fig.20

forusewithvariousdrillpressaccessories(stopblocks,

fences,orclamps).Use5/16"T-boltsor1/4-20hexhead

bolts when attaching your accessory to the table.

Since accessories other than those

offered by DELTA® have not been tested with this

product, use of such accessories could be hazardous.

For safest operation, only DELTA® recommended

accessories should be used with this product.

Fig. 20

Fig. 14

Fig. 15

Fig. 16

Fig. 17

Fig. 18

TABLE LOCKING WRENCH STORAGE

The table locking wrench can be stored underneath the

tableasshowninFig.21.

BELT TENSION LEVER HANDLE

Toattachthebelttensionleverhandle(II)Fig.22,placeit

inhole(JJ)withthehole(AA)up,asshown.

Alignsetscrew(BB)with hole(AA)Fig. 22 andtighten

screwdownintoholermlywithincludedhexwrenchas

showninFig.23.

Place M6 x 1 locknut (LL) Fig. 23 on set screw (BB).

Fig. 21

Fig. 22

TABLE INSERT

Thedrillpresstablecomeswithaninsert(XX)Fig.23B

madeofMDFtohelp preventwearand tearonthebit

when it drills down through the workpiece.

Over time, it will become necessary to replace this piece.

It can be made from 3/4" thick MDF cut into a 3-3/4"

square.

To replace the old insert :

1. Remove two screws from holes (YY) Fig. 23A that

hold insert in place.

2. Remove old insert and place your new insert into the

table(Fig.23B).

3. If the insert is not level with the table, adjust the four

jack screws (JJ) Fig. 23C. When the table insert is

level, tighten the locking nut on each screw.

4. Hold down on the insert and secure it in place with the

2screwsthatwereremovedinStep1.Insertscrewsin

holes(YY)Fig.23Aandsecureinsertinplace.

Fig. 23A

Fig. 23B

Fig. 23C

Fig. 23

OPERATIONAL CONTROLS AND

ADJUSTMENTS

OPERATION

Fig. 25

Fig. 24

Firmlytightenlocknut(LL)witha10mmwrench.

STARTING AND STOPPING 18-900L

To reduce the risk of injury, make sure

that the ON/OFF switch is in the "OFF" position before

plugging cord into outlet. Do not touch the plug’s

metal prongs when unplugging or plugging in the cord.

Toturn drill presson, liftswitchpaddle (KK) Fig. 24 up

tothe "ON" position.Toturn drill pressoff,push switch

paddle(KK)Fig.25downtothe"OFF"position,asshown.

LOCKING SWITCH IN THE "OFF" POSITION

To reduce the risk of injury, in the event

of a power outage (such as a breaker or fuse trip),

always move the switch to the “OFF” position until

the main power is restored.

IMPORTANT: When the machine is not in use, the

switchshouldbe lockedin the "OFF" position toprevent

unauthorizeduse,usingapadlockthroughholesat(LL)Fig.

25.Theminimum shacklediametershould be 1/5"(5 mm)

andminimumshacklelengthshouldbe7/8”(22.2mm).

Fig. 26

TURNING ON WORK LIGHT AND LASERS

Push"LASER"button(MM)Fig.26toturnon or turn off

the crosshair lasers.

Push"LIGHT"button(NN)Fig.26toturnonorturnoffthe

LED work light.

TABLE TILT POINTER

Lock the forward tilt knobs with the table rmly against

thesetscrew(Y1)Fig.23D.

Placethe lockwasherunder the screwhead (Z1) Fig.

23E, then washer and then pointer. Align the indicator

line on the pointer with 0° mark on the scale and tighten

securelywithsuppliedhexwrench.

Fig. 23D

Fig. 23E

TABLE ADJUSTMENTS

To reduce the risk of injury, turn unit off

and disconnect it from power source before installing

and removing accessories, before adjusting or when

making repairs. An accidental start-up can cause injury.

RISK OF PERSONAL INJURY. Make sure

that nothing is on the table and that the workpiece is

clampeddown.Fallingobjectscancauseaninjury.

Tilting table back to front

from zero (0) to 45 degrees

To adjust:

1. Loosenthetwoforwardtiltknobs(OO)Fig.27.

2. Adjust the table to your desired angle. The scale

(PP) Fig. 27 is located on the side of the table

support.

3. Tightentheknobs(OO)Fig.27.

4. A positive stop screw (QQ) Fig. 28 is provided to

return the table to the zero position. Adjust this stop

by turning the hex head of the stop screw (RR)

Fig.29fromunderthetable.Tightenthelocknut(SS)

Fig.29tosecurethestop.

Tilting table right to left

from zero (0) to 90 degrees

Anindexpinisincludedforthe0degreepositionofthe

table. To adjust:

1. Loosenthetablebolt(TT)Fig.29approximately1/4

turnwiththesuppliedtablelockingwrench(Fig.29).

2. Pullouttheindexpin(UU)Fig.30(inset).

3. Rotate the table to your desired angle. The tilt scale

(VV) Fig. 30 is located on the knuckle behind the

table.Usethisscaleforaccuracy.

4. Tightenthetablebolt(TT)Fig.29.

5. Whenyoureturnthetabletozero,re-inserttheindex

pin(UU)Fig.30(inset).

AISING AND LOWERING THE SPINDLE

To reduce the risk of injury, turn unit off

and disconnect it from power source before installing

and removing accessories, before adjusting or when

making repairs. Anaccidentalstart-upcancauseinjury.

Raise and lower the spindle with the pinion handles

(AA) Fig. 31.You can lock the quill at any point in its

travelbypositioning lockingnut(WW)againstthe stop.

To position nut, push the button in and slide it along the

threaded rod.

Fig. 30

Fig. 28

Fig. 27

Fig. 29

SPRING

The spindle will automatically return slowly to its upper

position when the handle is released. However, to adjust,

if necessary:

To reduce the risk of injury, turn unit off

and disconnect it from power source before installing

and removing accessories, before adjusting or when

making repairs. An accidental start-up can cause injury.

1. Remove plastic cap (XX) Fig. 32.

ADJUSTING THE SPINDLE RETURN

2. Loosen nuts (YY) but do not remove. Make sure that the

spring housing (ZZ) remains engaged with head casting

(S).

3. While

holding the spring housing (Fig. 33), pull

out the housing and rotate it (counter-clockwise to

increase or clockwise to decrease) until you feel the

boss (B) engaged with the next notch on the housing.

Tighten the two nuts (YY) Fig. 32 to hold the housing

in place.

IMPORTANT: The inside nut (B1) Fig. 33 should not

contact the spring housing (ZZ) Fig. 33.

4. Replace plastic cap.

PERSONAL INJURY HAZARD. Be careful

not to release the spring housing while adjusting the

spring tension as it may rotate rapidly from the spring

tension.

Fig. 31

Fig. 32

Fig. 33

Use care in loosening nut (XX).

DO NOT REMOVE NUT COMPLETELY! Loosen nut (XX)

only enough to make spring housing (YY) rotatable.

Loosening nut too much can be dangerous and cause

personal injury. Spring inside housing is under tension

and will try to unwind if not held securely. Spring

housing should still be held snugly to head casting by

the nut but be loose enough to rotate the spring

housing to desired spring tension.

CHECKING LASER ADJUSTMENT

To reduce the risk of injury, turn unit off

and disconnect it from power source before installing

and removing accessories, before adjusting or when

making repairs. Anaccidentalstart-upcancauseinjury.

LASER LIGHT. Do not stare into the

beam, aperture, or into a reflection from a mirror-like

surface.

Laser alignment is preset at the factory. If needed, the

alignment can be adjusted by following the steps below:

To check if the lasers are perpendicular to the table,

do this:

1. Usingacarpenter'ssquareorsimilardevice,drawa

straightline(C1)Fig.34onascrapboard.

2. Place board on its edge as shown in Fig. 34 with

line facing back of drill press. Make sure the board

is placed over the middle of the table insert (D1)

Fig.34,asshown.

3. Turn laser on so the red lines are shining on board as

shown.Checktoseeifbothredlines(E1)Fig.34are

parallelwiththeline(C1)youdrew.

If they are not:

1. Using an included hex key, turn the front screw

(F1)Fig.35ontherightlaserpodsothatitsredline

is parallel with the line you drew on the board.

2. Repeat this step for the left laser pod and its line

usingitsfrontscrew(F1)Fig.36.

To check to see if the lasers intersect at the drill

point:

1. Layboardatontable(Fig.37)andmakesureitdoes

not move.

2. Usingasmalldrillbitwiththemachineoff,lowerthe

drill bit and make an impression in the board.

3. For both lasers, use the same hex key in the the

backscrew(G1)(Fig.35and36)anddialthelasers

so they both cross this point together, as shown in

Figure37.

Fig. 34

Fig. 35

Fig. 36

Fig. 37

SPINDLE SPEEDS

Sixteenspindlespeedsareavailableonthedrillpress.Fig.38illustratesthebeltpositionsandthecorrespondingspeeds.

Fig. 38

Vitesses de fonctionnement recommandées (en tours par minute, ou tr/min)/

Recommended operating speeds (RPM)

Accessory

Softwood

(Pine)

Hardwood

(Hard Maple)

Acrylic Brass Aluminum Steel

Twist drill bits*

3000

1430

800

3000

1430

800

480

2230

2150

1430

3000

1120

800

420

3000

2230

1430

1120

3000

1120

540

310

16" -

16"

4" -

16" -

16" - 1"

Hole saws*

Brad-point bits*

1600

1430

1120

800

480

240

1430

1120

800

480

240

4" -

2" -

4" - 1"

8" - 1

8" - 2"

Forstner bits

2230

1430

1120

480

710

480

240

250

240

Spade bits*

480

240-480

310

240

150

240

1" - 1

8" - 2"

8" - 2

2150

1600

1430

1120

4" -

8" - 1"

8" - 1

170

260

330

510

290

440

570

1150

540

840

1650

2190

750

1460

2260

3000

N039330

ACCESSORY

SOFT WOOD HARD WOOD ACRYLIC BRASS ALUMINUM STEEL

WIS

DRILL BITS

1/16"-3/16"(1.5-5mm) 3000 3000 2260 3000 3000 3000



1/4"-3/8"(6.4-9.5mm) 3000 1460 2190 1150 2260 1150

7/16"-5/8"(11-16mm) 1460 840 1460 840 1460 540

11/16"-1"(17-25.4mm) 840 510 NR 440 1150 330

BRAD-POINT BITS

1/8"

(3.18mm) 1650 1150 1460 NR NR NR

1/4"(6.4mm) 1650 1150 1460 NR NR NR

3/8"(9.5mm) 1650 840 1460 NR NR NR

1/2"(12.7mm) 1650 840 1150 NR NR NR

5/8"(15.9mm) 1650 540 840 NR NR NR

3/4"(19mm) 1460 260 840 NR NR NR

7/8"(22.2mm) 1150 260 540 NR NR NR

1"(25.4mm) 1150 260 260 NR NR NR

ORS

TNER

BITS

1/4"-3/8"(6.4-9.5mm) 2260 750 NR NR NR NR

1/2"-5/8"(12.7-15.9mm) 2260 540 260 NR NR NR

3/4"-1"(19-25.4mm)

460 540 260 NR NR NR

1-1/8"-1-1/4"(28.6-31.8mm) 1150 260 260 NR NR NR

1-3/8"-2"(35-50.8mm) 540 260 NR NR NR NR

HOLE SAWS

1"-1

-1/2"(25.4-38.1mm) 540 330 NR 260 260 NR

1-5/8"-2"(41.3-50.8mm) 540 260 NR 170 260 NR

2-1/8"-2-1/2"(54-63.5mm) 260-540 NR NR 170 260 NR

PADE BITS

1/4"-1/2"

(6.4-12.7mm) 2190 1460 NR NR NR NR

5/8"-1"(15.9-25.4mm) 1650 1460 NR NR NR NR

1-1/8"-1-1/2"(35-38.1mm) 1460 1150 NR NR NR NR

MATERIAL

Also, the chart suggests shows what speeds to use with certain materials and bit sizes. Recommended operating speeds

are in RPMs.

CHANGING SPEEDS AND ADJUSTING BELT

TENSION

To reduce the risk of injury, turn unit off

and disconnect it from power source before installing

and removing accessories, before adjusting or when

making repairs. Anaccidentalstart-upcancauseinjury.

NOTE: Sixteenspindlespeedsareavailableonthedrill

press.A belt-positioning speed chart is located on the

inside top cover of the drill press.

1. Liftcover(H1)Fig.39.

2. Move belt tension lever handle(I1)Fig.39upandto

therightandengagethehook(J1)Fig.39(inset)to

hold the tensioner arm in place.

3. Choose the appropriate speed for the tool you

are using and position the belts on the pulleys

accordingly.Seechart(Fig.38)ontheinsidecover

of the drill press head.

4. NOTE: The belts are ribbed with grooves, so make

sure the belt grooves match up with the pulley

grooves.

5. Lifthandleandmovetoleft(asshowninFig.40)until

thebelttensionerarm(K1)restsagainstthebelts.

NOTE: Don'tforcethehandleanyfurthertotheleft.Itis

set with the proper tension for the belts.

NOTE:Fig.41showstheproperseatingforthetopbelt,

with the small bit of metal showing above the black belt.

Fig.42showsimproperseatingforthetopbeltwithno

metal showing above the black belt.

DRILLING HOLES TO DEPTH

To reduce the risk of injury, turn unit off

and disconnect it from power source before installing

and removing accessories, before adjusting or when

making repairs. Anaccidentalstart-upcancauseinjury.

Whenyouwanttodrillanumberof holestothe same

depth, follow this procedure:

Setting zero

1. Placebit(L1)inchuckFig.43.

2. Lowerthebituntilittouchesworkpiece(M1)Fig.43.

3. Raise the quill locking nut (N1) by pressing button

andraisingitupagainstthedepthstopbracket(O1).

4. Turn scale on the pinion (P1) Fig. 44 to the zero

mark.

Set depth

1. Removetheworkpieceandrotatepinionhandlesto

lower quill to desired drilling depth as registered on

the scale.

2. Holding the quill at this depth, raise the quill locking

nut (N1) Fig. 43 back up against the depth stop

bracket.

3. Still holding the spindle, lower the depth stop nut

(Q1)Fig.43downagainstdepthstopbracket.

4. Lowerthequilllockingnut(N1)Fig.43outoftheway.

To reduce the risk of injury, tighten all

lock handles before starting the machine. Loss of control

of the workpiece can cause serious injury.

Fig. 40

Fig. 39

Fig. 42

Fig. 41

CORRECT

INCORRECT

andcounter-clockwisetoloosenthechuckjaws.

4. Tighten all three chuck jaws to secure the drill bit

sufficiently to prevent slipping.

5. Removethechuckkey(T1)Fig.46fromthechuck

before starting the drill press. The chuck key is

equipped with a self-ejecting pin (U1) which helps

minimize the potential for the key to be left in the

chuck.

REMOVING CHUCK AND SPINDLE ADAPTER

To reduce the risk of injury, turn unit off

and disconnect it from power source before installing

and removing accessories, before adjusting or when

making repairs. Anaccidentalstart-upcancauseinjury.

The spindle adapter and chuck can be removed for the

purpose of using shanks with a #2 morse taper.

1. Aligntheslotinthequill(V1)Fig.47withtheslotinthe

spindle(W1).

2. Insertthedriftkey(X1)Fig.48throughtheslotinthe

quill and the slot in the spindle.

3. Tapthedriftkey(X1)Fig.48withahammeruntilthe

MACHINE USE

5. Connect the machine to the power source and drill

a test hole to check the adjustment. Readjust, if

necessary, by rotating the stopnut (Q1) Fig. 43 for

neadjustment.Youdonothavetodepressthebutton

torotatethestopnut(Q1).

NOTE: Usedrillbitswithshankdiametersof5/8"orless.

NOTE: After installing a drill bit, use the supplied key to

tighten all three locations on the chuck.

To reduce the risk of injury, tighten all lock

handles before starting the machine. Loss of control of the

workpiece can cause serious injury.

To reduce the risk of injury, properly

support long or wide work-pieces. Loss of control of

the workpiece can cause severe injury.

To reduce the risk of injury, do not place

morethan250pounds(113kg)ofweightonthetable.

The use of accessories and attachments

not recommended by DELTA® may result in risk of

injury.

IMPORTANT:Whenthe workpiece (M1) Fig. 45 is long

enough, position it on the table with one end against

theleftsideofthecolumn(R1)topreventtheworkpiece

from rotating. If it is not possible to support the workpiece

against the column, clamp the workpiece to the table.

INSTALLING AND REMOVING DRILL BITS

NOTE: Usedrillbitswithashankof5/8"orlessindiameter.

To reduce the risk of injury, turn unit off

and disconnect it from power source before installing

and removing accessories, before adjusting or when

making repairs. Anaccidentalstart-upcancauseinjury.

1. Insertthe smooth end of drill bit (L1) Fig.46 in the

chuck(S1)asfarasitwillgo,andthenbackthebit

out1/16"(1.6mm)(oruptotheutesforsmallbits).

2. Centerthedrillbit(L1)Fig.46inthechuck(S1)before

tighteningthechuckwiththekey(T1).

3. Turnthechuckkey(T1)Fig.46clockwisetotighten

Fig. 43

Fig. 44

Fig. 45

Fig. 46

the spindle adapter and chuck fall from the quill.

CORRECT DRILLING SPEEDS

Factors that determine the correct speed are 1) the

workpiece,2) thesizeofthehole,3)the typeof bitor

othercutter,and4)thequalityofcut.

Use the recommended speed for the the

drill press bit and workpiece.

DRILLING WOOD

To reduce the risk of injury, tighten all lock

handles before starting the machine. Loss of control of

the workpiece can cause serious injury.

Twist drills, usually intended for metal drilling, can also be

used for boring holes in wood. However, machine spur

bits are generally preferred for working in wood. These

bitscutaat-bottomholeandaredesignedforremovalof

woodchips.Donotusehandbits(screwtip).Atdrillpress

speeds, they lift and rotate the workpiece.

Forthroughboring,aligntheworkpiecesothatthebitwill

go through the center hole in the table. Scribe a vertical

line on the front of the column and a matching mark on

the table bracket and the drill press head, so that the

table and drill press head can be clamped in the center

position at any height.

Feedthedrillbitslowlyintotheworkpiecewhenthebit

is close to cutting through the wood to prevent splintering

thebottomface.Useascrappieceofwoodasabase

block under the work to reduce splintering and protect

the point of the bit.

DRILLING METAL

To reduce the risk of injury, tighten all lock

handles before starting the machine. Loss of control of

the workpiece can cause serious injury.

Use clamps to hold metal workpieces. Never hold the

workpiece in your bare hand. The drill bit can seize the

work at any time, especially when breaking through the

workpiece and cause damage to the machine or injury

to you. The drill bit will break if the workpiece strikes the

column.

Fig. 47

Fig. 48

Clamptheworkpiecermly.Anytilting,twisting,orshiftingresultsnotonlyinaroughhole,butalsoinbitbreakage.Forat

work, lay the workpiece on a wooden base and clamp it rmly against the table to prevent it from turning. If the workpiece

isofirregularshapeandcannotlayatonthetable,securelyblockorclampit.

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