500X & 750X 500X & 750X
Contents
1. When viewing a well sharp ened bit from the end the entire surface from the Cut ting Edge to the Heel will have a finely ground surface without ridges or indenta tions The Heel will always be lower than the Cutting Edge www drilldoctor com The Drill Doctor Sharpening Process The sharpening process includes 4 easy procedures 1 Determine the type and angle of the drill bit 2 Align the bit in the Chuck 3 Sharpen the bit 4 Split the point if you choose Be sure to complete the first three procedures in order to sharpen a bit and always sharpen a bit prior to splitting it Choosing Your Drill Bit Point Angle When drilling into certain difficult materials a shallower point or 135 point angle produces a better finished hole Your Drill Doctor allows you to sharpen bits with either the standard 118 or the flatter 135 point angle You can also adjust the chisel and relief angle Refer to page 19 for the benefits of using Variable Alignment to adjust the Chisel and Relief angles Depending on the material you are drilling in you may choose to increase or decrease these angles On the Model 500X 1 Check your drill bit angle Y Most bits are 118 or 135 Hold your bit point up to the key to the left to see which 7 type your bit looks like If you can t tell due to small size or damage on the tip set your Y Drill Doctor based on the application Most wood and f soft metal app2. Chuck and tighten the Chuck Knob Avoid over tightening the Chuck in the Alignment Port This could damage the Chuck and Port Remove and re tighten Press the Alignment Button and remove the chucked drill bit Tighten the Chuck once more to ensure the bit won t move when you sharpen it You are now ready to sharpen the drill bit Sharpening the Drill Bit Before sharpening you should know e Keep the Cam in contact with the Cam Guide as you sharpen push the Chuck straight into the Port e Only light pressure is required 10 www drilldoctor com e You will hear a grinding noise ZZZZZZZZz as you complete each half turn and each side of the bit face is ground e The Chuck will rock as you turn it and the Cam rides on the Guide 1 Align Guides Turn the Drill Doctor on Align either of the Sharpen ing Guides with the Cam Guide on the machine Cam Guide 2 e Insert Chuck and turn Against y until the bit is sharp Cam Guide oy Insert the Chuck in the Sharpening Port Making sure you keep the Cam against the Cam Guide rotate the Chuck one half turn in a clockwise direc tion from Sharpening Guide to Sharpening Guide an even number of times Your motion should be smooth and even To sharpen both sides of the bit evenly always use an even number of half turns The number of turns needed to sharpen the bit depends on the size Turn the Chuck an even number of half turns with light inward
3. N K 1 t Sn j DD y ae User s Guide Guia del Usuario Mode d emploi Thank you for purchasing a Drill Doctor It is sure to become a valuable tool because you will always have sharp drill bits before a project during a project and after a project As president of this company I am very proud of the qual ity of our products and I am equally proud of the great people at Drill Doctor who design and produce them If you have questions or need help with your Drill Doctor please contact us and one of our customer representatives will be there to help We support what we build Use this User s Guide and the DVD video to learn to oper ate your Drill Doctor quickly and easily I d also like to invite you to visit our website at www DrillDoctor com There you will find e Demonstrations of all operations with the sights and sounds leading to successful drill bit sharpening e Downloadable copies of the User s Guide e Warranty registration e Service and contact numbers Again thank you for buying a Drill Doctor Now go enjoy its convenience and quality Hark O Pett Hank O Dougherty President Drill Doctor Contents IED iia diia 1 Important Safety Instructions sscccccccscescssees 2 Getting to Know Your Drill Doctor 5 Identifying Basic Drill Bits cscs csssevsevescoconssconctavvesseee 6 Anatomy Of a Drill Bit scsssccecsceccssavsceresavces
4. for part identification diagram The unit is completely assembled the Drill Doctor only needs to be placed on a flat stable tabletop Connect to properly wired outlet Precautions When using electric tools basic safety precautions should always be followed to prevent the risk of fire electric shock and personal injury KEEP WORK AREA CLEAN Cluttered areas and bench invite accidents DO NOT USE IN DANGEROUS ENVIRONMENT Do not use in damp or wet locations avoid exposure to rain Keep work area well lit Do not use tools in the presence of flammable liquids or gases GUARD AGAINST ELECTRIC SHOCK Avoid body contact with earthed or grounded surfaces e g pipes radiators ranges refrigerators KEEP OTHER PERSONS AWAY Do not let persons especially children not involved in the work touch the tool or the extension cord and keep them away from the work area STORE IDLE TOOLS When not in use tools should be stored in a dry locked up place out of the reach of chil dren DO NOT FORCE THE TOOL It will do the job better and safer at the rate for which it was intended www drilldoctor com e DRESS PROPERLY Do not wear loose clothing or jew elry they can be caught in moving parts Wear protec tive hair covering to contain long hair e USE PROTECTIVE EQUIPMENT Use safety glasses Use face or dust mask if working operations create dust e DO NOT ABUSE THE CORD Never yank the cord to disconnect it from the so
5. the machine and away from you In addition the Grit Tube reduces the sharpen ing dust in the air and on your workbench Simply insert the Grit Tube into the Splitting Port of your Drill Doctor when sharpening It will catch the grit that is formed from the sharpening process Clean the inside of your Drill Doctor and the Grit Tube on a regular schedule The grit tube is designed to accept a standard 1 shop vac uum for extended periods of sharpening Sharpening Bits of Different Lengths Diameters and Types Drill Bits Of Different Sizes Too many rotations of a small diameter bit may result in incorrect sharpening and too few on a large bit may not sharpen enough Continue to sharpen until the Chisel Edge is clean and straight and the entire surface from the Cutting Edges to the Heel is finely ground e 3 32 inch bits use 2 to 4 half turns e 1 8 inch bits use 4 to 6 half turns e 3 8 inch bits use 16 to 20 half turns Large Drill Bits The Model 500X sharpens bits from 3 32 to 1 2 You can also purchase a Large Bit Chuck that sharpens bits up to 3 4 The Model 750X comes equipped with that Large Bit Chuck It sharpens bits from 3 32 to 3 4 inches Large bits are sharpened just like any other bit It is important to sharpen these bits so that the entire face of the drill bit is sharpened A large bit requires more pressure and will require more half turns to sharpen it 16 www drilldoctor com Bits
6. you ve made your adjustment align and sharpen your bit as usual 20 www drilldoctor com Questions and Answers 1 Question Why was my drill bit sharpened improperly Answer The most common cause of improper sharpening is drill bit alignment Key causes are 1 Chuck not pushed all the way into the Alignment Port 2 Drill not aligned in the Chuck Jaws correctly 3 The type of drill requires an angle adjustment to achieve the desired Chisel and Relief Angles Try using the Variable Alignment to adjust the Chisel and Relief Angle see page 19 4 Chuck is dirty or the bit slipped out of alignment See pg 25 Cleaning the Chuck 5 Too many rotations of a small diameter bit results in incorrect sharpening and too few on a large bit may not sharpen enough See page 16 Drill Bits of Differ ent Sizes 2 Question When I aligned the drill bit and sharpened it why was no material removed Answer This happens when the bit is not protruding out of the Chuck far enough You may have allowed the Alignment Button to knock the drill back into the Chuck when align ing the bit Carefully realign the bit in the Alignment Port again Make sure the drill bit is pushed all the way against the Drill Stop before you release the Alignment Button 3 Question I sharpened the bit Why will it not cut www drilldoctor com 21 Answer This happens when the Heel on the bit is higher than the Cutting Edge ne
7. 1 2 or larger will need a minimum of 40 half turns A 3 4 bit may require up to 60 half turns It may take two or three complete sharpenings repeat all steps to re sharpen a very dull or chipped large drill bit Your Drill Doctor is delivered with a 180 grit Diamond Sharpening Wheel If you regularly sharpen larger bits between 1 2 and 3 4 you may wish to purchase the coarser 100 grit Diamond Sharpening Wheel which sharpens larger bits faster Short Drill Bits and Bits Smaller than 1 8 Set the point angle for 118 Put the bit in the Chuck as normal but tighten Chuck so that it is just snug enough for the bit to move freely Push and hold the Alignment Button Partially insert the Chuck in the Alignment Port but do not push the Chuck all the way in Use the Chuck Knob to rotate the bit until it can be held by the Bit Clamp Arms in the narrowest width of the bit Make sure that the bit is touching the Drill Stop then release the Alignment Button Turn the Chuck until the Alignment Guide on the Chuck aligns with the 118 notch on the Alignment Port Now push the Chuck the rest of the way in Tighten the Chuck remove and tighten again Sharpen the small bit as usual Aligning and Sharpening Masonry Drill Bits To sharpen a masonry bit you do not turn the Chuck Instead you insert the Chuck until it touches the wheel remove and repeat on the other side Set the point angle to 118 www drilldoctor com
8. 17 Align the bit with the Masonry Sharpening Marks Insert the bit into the Chuck and line up the carbide insert on the tip of the bit so that it is parallel to the Mason ry Sharpening Marks on the end of the chuck Leave about 1 2 5 8 of bit stick ing out past the nose of the chuck Tighten the chuck just to the point that the bit slides in and out 2 Carbide Insert Masonry Sharpening Marks 3 Set the depth Set the depth by lining up the Sharpening Guide with the Cam Guide Push the Chuck into the Sharpening Port until it stops and tighten the Chuck Remove the Chuck to ensure the carbide insert TI is aligned with the SSA Masonry Sharpen ER Se EA yy ing Marks and tighten again G Sharpening Guide O Sharpen by plunging Line up the Sharpening Guide on the Chuck with the Cam Guide on the machine Plunge the Chuck into the Sharpening Port until it touches the Sharp ening Wheel Remove the Chuck rotate one half turn clockwise and repeat the plunge action Start with four plunges and always use an even number Inspect the bit and continue until the cutting surfaces are sharp If the bit stops grinding before the edges are sharp loosen the Chuck push the bit out slightly Make sure car bide insert is still aligned with Masonry Sharpening Marks Tighten the Chuck and continue sharpening 18 www drilldoctor com Using the Variable Alignment to Adjust the Chisel an
9. 52 1301 Please call 8 00 AM 3 30 PM Pacific Time Do not return this product to the store where you purchased it Do not attempt any service or repairs other than those suggested by a Drill Doctor Technical Service Representative TSR During the period of warranty Drill Doctor will at our discretion repair or replace this product free of charge and refund postage or ship ping charges providing that the following conditions are met 1 A copy of the proof of purchase is provided 2 The product has been operated for the purpose intended as described in the operating instructions and has not been abused or mishandled in any way 3 The product has not been dismantled and no service or repairs have been attempted other than those suggested by a Drill Doctor TSR 4 The Return Goods Authorization number RGA assigned by the Drill Doctor TSR is written on the shipping label Please make certain to package items in such a way as to eliminate further damage during shipping Ship via a trace able carrier and properly insure the package No CODs are accepted Unapproved shipping charges are non refundable Complete and mail back the Warranty Registration amp Cus tomer Survey or register online at www DrillDoctor com Please Fill in the Following for Your Records Drill Doctor Model Date of Purchase __ Purchased from _ 28 www drilldoctor com
10. Model 750X users refer to Using the Variable Material Take Off MTO on page 20 A good test to see if the Chuck is tightened the correct amount is to make sure it moves when you pull on it with your fingers but will not fall out when you turn the Chuck upside down Insert Chuck into Alignment Port Press the Alignment Button down and hold it Match the either of the Alignment Guides on the Chuck with the 118 Notch on the Alignment Port Insert the Chuck While holding the button down slide the drill bit forward until it touches the Drill Stop and the Chuck is pushed all the way into the Alignment Port Release the Align ment Button If you are using a Model 750X and have chosen a custom bit point between 115 and 140 start your alignment in the closest setting to the point angle you are using For example if you are setting the point angle below 118 than set the alignment in the 118 setting Refer to Using the Variable Alignment to Adjust the Chisel and Relief Angle on page 19 www drilldoctor com 9 3 Adjust Bit Position Look at your bit and make sure the Clamp Arms are in the bit s narrowest spot If they aren t turn the bit in the chuck so that it is held by the Bit Clamp Arms at the nar rowest width This is impor tant because this setting determines the angle at which your bit will be sharpened Drill Bit Stop Bit Clamp Arms Tighten Chuck Hold onto the
11. Power Switch and Cord Drill Stop la an Pe L Y Relief Angle Settings Cam Guide Sharpening Port Point Angle Adjustment Plate Splitting Guide Split Point Port Split Point Guide Rails Quick Change Diamond Sharpening Point Angle Wheel Inside Adjustment Knob Masonry Bit Chuck Jaws Alignment Mark Alignment Guides Adjustable Material Take Off MTO Knob 750X Only Chuck Grit Tube www drilldoctor com 5 Identifying Basic Drill Bits The Drill Doctor is most efficient when used to sharpen a drill bit s original point angle With its standard Diamond Sharpening Wheel it will sharpen high speed steel cobalt TiN coated carbide and masonry drill bits It has been designed and engineered to sharpen three of the most common drill bit types and offer you an ability to customize your point i Standard Point This general purpose point is used for drilling softer mate rials like cold rolled steel aluminum and wood Split Point Split point bits are self cen tering and are generally used for tempered steels hard alloys or hard cast materials Masonry Bits Masonry bits have a carbide insert at the point and are used for drilling materials like cement brick and ceramic Anatomy of a Drill Bit Chisel Edge Cutting Edge ie Relief Angle Heel Cutting Edge 5 It is important to understand that each bit has a all of these characteristics
12. cket Keep the cord away from heat oil and sharp edges e MAINTAIN TOOL WITH CARE Keep the Drill Doc tor clean for best and safest performance Follow instructions for maintenance and changing acces sories Inspect cords periodically and if damaged have them repaired by an authorized service facility Inspect extension cords periodically and replace if damaged Keep unit dry clean and free from oil and grease e DISCONNECT TOOLS Always disconnect the Drill Doctor when cleaning inspecting and changing accessories such as the diamond sharpening wheel When not in use disconnect from the power supply Never touch internal parts of the sharpener when it is turned on or plugged in The rotating diamond wheel Can Cause injury e AVOID UNINTENTIONAL STARTING Make sure switch is in the OFF position before plugging in e STAY ALERT Watch what you are doing use common sense and do not operate the tool when you are tired e CHECK DAMAGED PARTS Before use of the tool it should be carefully checked to determine that it will operate properly and perform its intended function Check for alignment of moving parts binding of mov ing parts breakage of parts mounting and any other conditions that may affect its operation A guard or other part that is damaged should be properly repaired or replaced by an authorized service center unless oth erwise indicated in the instruction manual Have defec tive switches replaced by an a
13. d Relief Angles Both Models 500X and 750X enable you to adjust the Chisel and Relief Angles of your drill bit The Chisel and Relief Angles have a direct effect on the performance of your drill By increasing the Relief Angle you can increase the speed of the drill in softer materials To improve the quality of the hole you can adjust the drill to be less aggressive A less aggressive drill has a lower Chisel and Relief Angle Your Drill Doctor enables you to adjust both angles in one setting Chuck bit as usual To prepare your bit for this fine adjustment follow all the Steps for chucking your bit given previously in this User s Guide Insert Chuck into Alignment Port To adjust the Chisel and Relief Angles simply align the bit as usual with the fol lowing adjustment To increase Relief position the Chuck in the Alignment Port so that the Alignment Guide is closer to the position This will make a more aggressive drill point To decrease Chisel and Relief position the Chuck in the Alignment Port so that the Alignment Guide is closer to the position This will make a more precise hole Take care not to adjust Relief too far as this will actually cause the drill to lose all Relief and therefore not drill a hole Each notch in the Alignment Port is approximately a 10 change in Chisel Angle www drilldoctor com 19 Adjust bit position tighten Chuck and sharpen as usual Refer to pages 9 10 for the
14. d the Wheel Cover into a disposable container Remove dust particles around the wheel with a small dry brush Dispose of the container and drill bit dust in a safe and environmentally approved manner With a dry cloth wipe the inside and outside of the Sharpening Port to remove any grinding dust that may have accumulated A standard 1 vacuum hose works equally well You can also use the Grit Tube attachment as shown on page 16 Cleaning the Chuck With compressed air blow out the Chuck from the Knob end or brush out with a small dry brush Determining if Replacing the Diamond Sharpening Wheel is Required You can double the life of the Diamond Sharpening Wheel by reversing it before you replace it The Sharpening Wheel supplied with the Drill Doctor is designed to give you long and trouble free service with an average of more than 200 sharpenings for 3 32 to 1 2 drill bits The Diamond Sharpening Wheel may need to be changed if e Sharpened drill bits burn or turn blue no matter how fast or slow you rotate the Chuck e When touching the Sharpening Wheel with the machine unplugged the lower portion feels too smooth nonabrasive e When sharpening the drill bit it takes too many half turns to sharpen Contact the store or dealer where you purchased the Drill Doctor or contact Drill Doctor directly to purchase a replacement Sharpening Wheel www drilldoctor com 25 Reversing or Replacing Your Diamond Sharpening W
15. e Adjustable Alignment proce dure on page 19 To increase relief insert the alignment Aitana guide on the chuck closer to dali the side of the alignment port then sharpen the bit Problem Cause Chuck too loose or too much Bit backing out or pressure when sharpening slipping out of the jaws when you are A sharpening Solution Use more torque when tight ening the Chuck or less pres sure when sharpening Clean the Chuck w compressed air if the problem persists Split Points Split point drill bits prevent walk around on the material before they begin to cut This feature is described as self centering The need to center punch is effectively eliminated A standard drill bit chisel point has to wear an area in the middle of the hole to be drilled before the cutting edges will remove material Due to its additional cutting lips along the chisel edge a split point will begin cutting immediately Up to 70 less thrust when compared to a non split or conventional point is required to drill a hole with a split point www drilldoctor com 13 Creating or Replacing a Split Point 14 Leave bit in Chuck after sharpening Always align and sharpen a bit before splitting it To split the point do not remove the bit from the Chuck after sharpening Align Guides Align one of the Sharpening Guides on the Chuck short white marks with the Split ting Guide on the Splitting Port Make sure the Align ment Guides in
16. gative relief To correct this problem follow the instructions in Using the Variable Alignment to Adjust the Chisel and Relief Angle on page 19 You may have a specialty drill bit Slow and Fast Spiral Helix Turbo Flutes and Raised Margin drill bits are con sidered specialty bits If you re are getting insufficient relief on specialty bit types try aligning all the way in the setting on the alignment port This will help improve the sharpening on these types of bits 4 Question What can I do about flat spots on the bit point between the Cutting Edge and the Heel Answer The flat spots on a sharpened bit are the result of an incomplete or paused half turn of the Chuck in the Sharp ening Port To correct apply light inward pressure and rotate the Chuck smoothly while sharpening Be sure to complete the half turns 5 Question Why is the drill point off center Answer If the tip of the drill bit appears to be sharpened off center check the following items e You may not have done an even number of half turns when you sharpened and one face of the bit was ground more than the other Always use an even num ber of half turns when you sharpen e Make sure that there are no particles between the Chuck Jaws and the drill bit that could hold it off cen ter Check the drill to ensure it is straight and free of burrs e Make sure the bit is not loose in the Chuck e During the sharpening process be sure t
17. heel Unplug your Drill Doctor make sure machine is cool then remove wheel cover Turn the Quick Change Knob clock wise while holding the Sharpening Wheel to keep it from turn ing Remove the wheel replace and tighten the Quick Change Knob by turning counter clockwise while holding the wheel to keep it from spinning Drill Doctor seen from below 26 www drilldoctor com Accessories Order accessories through our website www DrillDoctor com or by contacting us at the phone number listed on the Warranty page page 28 or at the retailer where you purchased your Drill Doctor 3 32 to 3 4 Large Bit Chuck Part DA70100PF 3 32 to 1 2 Left handed Bit Chuck for 3 32 1 2 reverse twist drill bits Part DA02105PF Standard Diamond Sharpening Wheel 180 grit Part DA31320GF Coarse Diamond Sharpening Wheel 100 grit Part DA31325GF WARNING The use of any accessory other than one rec ommended in this user s manual may present a risk of personal injury www drilldoctor com 27 Drill Doctor Warranty USA and Canada Only See Warranty Card insert for countries outside the USA and Canada Your Drill Doctor is warranted to be free of defects due to work manship or design for 3 years from the purchase date If your Drill Doctor fails to operate or if any operating problem occurs contact Drill Doctor Technical Service at 1 888 693 7455 toll free USA and Canada only 1 541 5
18. lications v should use 118 degree Hard er materials such as stainless steel and tool steel should use 135 or if you are drilling contoured materials such a car fender and plan on splitting the point www drilldoctor com 7 2 Point Angle Adjustment Knob Choose the angle Loosen the Point Angle Adjustment Knob on the right side of the Sharpening Port and slide the metal Point Angle Adjust ment Plate to either the standard 118 or the flatter 135 point angle Then re tighten the Knob On the Model 750X Point Angle Adjustment Knob Choose the angle The Model 750X has addi tional advanced features that enable you to fine tune your bit geometry Loosen the Point Angle Adjustment Knob to the right of the Sharpening Port and slide the metal Point Angle Adjust ment Plate to 118 135 or the custom angle of your choice Choose your point angle based on the application you re drilling Then re tighten the Knob Aligning the Drill Bit This makes sure that the Drill Doctor creates the nght geometry And it sets the bit so that only a small amount of the tip is taken off See page 17 to align and sharpen a Masonry drill bit www drilldoctor com Insert bit in Chuck and tighten Insert the bit into the Chuck Jaws and close the Jaws just to the point where the bit slides in and out Do not over tighten the Chuck the bit needs to be able to move in and out until Step 4
19. ng Your Chuck may be dirty Follow the steps for cleaning the Chuck on page 25 10 Question When splitting why don t I hear a grinding sound Answer The Chuck is not seated properly in the Splitting Port The Chuck s Sharpening Guide must line up with the Splitting Guide on the top of the Split Point Port Firmly and slowly push the Chuck into the hole until the grinding sound stops 11 Question Can I change a 135 drill bit into a 118 drill bit Answer You can change the degree angle of any drill bit from 135 to 118 The alignment and sharpening procedure will need to be performed three or more times to remove the old angle and produce the new angle desired Drill Doctor Maintenance After sharpening 20 to 25 drill bits the drill bit grinding dust will accumulate in the grinding compartment Grind ing particles will promote wear in the Sharpening Port and Chuck so cleaning on a consistent basis can add life to your machine Before any maintenance or cleaning is performed be sure to disconnect your Drill Doctor Removing the Wheel Access Cover With the Drill Doctor unplugged use your nail or the tip of your finger to pull the Wheel Access Cover down It will come completely off for easy access To close insert the Cover in the slots and snap it back into place 24 www drilldoctor com Cleaning Your Drill Doctor With the Drill Doctor unplugged shake accumulated drill bit grinding dust from behin
20. o keep the same pressure on each half turn 22 www drilldoctor com 6 Question Why is the chisel edge on my drill bit flat Answer During the alignment process the Bit Clamps were grip ping the high points of the drill bit Realign the drill bit making sure that the Bit Clamps are located in the nar rowest section of the bit See page 10 7 Question Why was my drill bit sharpened improperly Answer The most common cause of improper sharpening is improper drill bit alignment Key causes are 1 Drill point not pushed all the way to the Drill Stop 2 Chuck not pushed all the way into the Alignment Port 3 Drill not aligned in the Bit Clamps correctly In order to correct these problems be sure the Chuck is all the way in the Alignment Port The drill point must be against the Drill Stop and the Bit Clamps must be at the narrowest part of the drill bit 8 Question Why is my split point uneven Answer Page 15 shows a drill point that is undersplit and a drill point that is correctly split To correct an uneven point split insert the Chuck into the Splitting Port and split both sides again Push the Chuck into the Port until it stops Repeat until the split sides are equal and look like the correctly split bit shown above www drilldoctor com 23 9 Question Why does the drill bit back up into the Chuck during the sharpening procedure Answer Make sure the bit is tight in the Chuck before sharpeni
21. pressure e 3 32 inch bits use 2 to 4 half turns e 1 8 inch bits use 4 to 6 half turns e 3 8 inch bits use 16 to 20 half turns Note Use just enough pressure to keep the Cam against the Cam Guide Let the machine do the sharpening www drilldoctor com 11 Identifying Correctly Sharpened Drill Bits and what to do with those that aren t Correctly Sharpened Bits Heel Chisel Point Cutting Edge The entire surface from the Cutting Edge to the Heel will have a finely ground surface without ridges or indenta tions The Heel will always be lower than the Cutting Edge The Chisel Edge will be clean and straight Incorrectly Sharpened Bits Problem The Chisel Edge is ground flat Problem The Chisel Edge is not clean or straight 12 Cause Chuck Jaws did not grip drill bit properly in the aligning process Page 8 Solution Realign the bit by carefully following steps 1 through 5 on Pages 8 to 10 Cause The bit isn t completely ground yet Solution Continue sharpening the bit until the chisel is clean and straight If the machine quits removing mate rial before the chisel is clean re align and sharpen again Model 750X users can increase or decrease MTO material take off to speed up this process www drilldoctor com Problem Cause Insuffecient Negative Drill bit alignment relief or a slow cutting drill bit Solution Cutting Edge Heel J Re align the drill using th
22. se Steps Experiment with a few different settings to find the one that best suits your drill bits and application You may find it helpful to mark this setting for future use Using the Variable Material Take Off MTO Variable Material The Model 750X enables Take Off Knob f you to remove more or less material from the tip of your bit when you sharpen If your bit is only slightly dull and you simply wish to touch up its point turn the Material Take Off Knob clockwise to reduce the amount of time it takes to sharp en the bit If your drill bit is quite dull or damaged turn the Material Take Off Knob counter clockwise to increase the amount of material removed Your MTO adjusts from 0 to 040 of an inch in increments of 005 Prior to aligning the bit turn the MTO Knob counter clockwise until it stops This is the maximum material that can be removed in one sharpening Then turn it clockwise 3 marks on the MTO knob This is a good place to start for most bits Now turn the MTO knob either direction to adjust the desired MTO Each mark on the MTO knob is equal to 005 change in material removed from the bit Note After you have sharpened your bits on the Drill Doc tor at least one time it is desirable to turn the MTO Knob such that only a small amount of material is removed from the bit each time you sharpen This will significantly decrease the time to sharpen as well as extend your bit and wheel life Once
23. sert into the Split Point Guide Rails in the Splitting Port Split the point Press Chuck slowly and firm ly into the Splitting Port until it stops Remove the chuck rotate one half turn and repeat Check the tip of the bit care fully to determine that both sides of the bit are split equally Compare it to the illustrations If it does not match study the information following www drilldoctor com Identifying Correctly Split Drill Bits And What to Do With Those That Aren t tees Split Split line Undersplit Split lines do not meet in the center but Chisel Edge remains A Not enough material has been removed from the Heel of the drill bit Oversplit Too much material removed Split lines are joined in the center and Chisel sd has been removed A o www drilldoctor com Split lines are nearly straight across Solution More grinding is needed for larger drill bits If one side of the bit is undersplit insert the Chuck into the Splitting Port again and split both sides Push the Chuck into the Port until 1t stops Repeat until the split sides are equal and look like the correctly split bit shown above Solution Reinsert the chucked bit into the Sharpening Port and remove enough of the tip until the split tip looks like the correctly split bit above 15 Grit Tube Attachment The Grit Tube attachment is designed to keep any sparks caused by sharpen ing safely inside
24. soovdesexcnasnnnse 6 The Drill Doctor Sharpening Process 000 7 Choosing Your Drill Bit Point Angle on the Model 500X sosesesosssosessessseosescssssoeceesessoeessesso 7 Model 750X cissi urcene cepto hirere eantas 8 Aligning the Drill Blan ont 8 Sharpening the Drill Blanca 10 Identifying Correctly Sharpened Drill Bits 12 Split POMS ennerien nnen e nE EE N 13 Creating or Replacing a Split Point 14 Identifying Correctly Split Bits coccnnnnnnn 15 Grit Tube Attached peins 16 Sharpening Bits of Different Lengths Diameters and Types Large Drill Bits oil 16 Short Drill Bits and Bits Smaller than 1 8 17 Masonry Drill DIS latas 17 Using the Variable Alignment to Adjust Chisel and Relief Amoles 19 Using the Variable Material Take Off on the 750X 20 Questions and Answers cccccssssccccesssscccceeesesees 21 Drill Doctor Maintenance cssseeessessesees 24 Accessories and User Replaceable Parts 27 Warranty ade 28 SAO conca 29 PRTC AAA AAA 60 www drilldoctor com 1 IMPORTANT SAFETY INSTRUCTIONS For your own safety please read this User s Guide before operating the Drill Doctor Installation Carefully unpack the Drill Doctor drill bit sharpener and set it on a table Check to see that no damage has occurred in shipment Check all packing material to be sure that all parts are present See User s Guide
25. uthorized service center Do not use the tool if the switch does not turn it on and off Do not use if the grinding wheel is damaged Use only grinding wheels recommended by Drill Doctor www drilldoctor com 3 WARNING The use of any accessory or attachment other than one recommended in the instruction manual may present a risk of personal injury HAVE YOUR TOOL REPAIRED BY A QUALIFIED PERSON This electric tool complies with the relevant safety rules Repairs should only be carried out by qualified persons using original spare parts otherwise this may result in considerable danger to the user NEVER LEAVE TOOL RUNNING UNATTENDED USE EAR PROTECTION DURING USE The Drill Doctor can generate up to 85 dB A noise emissions when in operation For Service Contact Professional Tool 210 E Hersey St Ashland OR 97520 USA Phone 1 888 MYDRILL 693 7455 FAX 541 552 1377 Email tech drillDoctor com WARNING Some dust created by power sanding grinding mis cellaneous construction activities as well as con tents from the machine including the molding wiring grinding wheel or any other parts may con tain chemicals known to the State of California to cause cancer birth defects or other reproductive harm and can be hazardous to your health www drilldoctor com Getting to Know Your Drill Doctor Watch the User DVD included with your Drill Doctor and become a sharpening expert in minutes Ae a Y
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