User manual DRILL DOCTOR 350X

[. . . ] 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 quality 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. Use this User's Guide and the DVD video to learn to operate your Drill Doctor® quickly and easily. [. . . ] ⷠYou will hear a grinding noise (zzzzzzzzz) as you complete each half-turn and each side of the bit face is ground. Making sure that the Chuck rests firmly against the Cam Guide, turn the Chuck one half-turn to the right--to the other Sharpening Guide. Turn from Guide to Guide in a smooth and even motion until the bit is sharp. To sharpen both sides of the bit evenly, always use an even number of half-turns. The number of half-turns needed to sharpen the bit depends on its size. Turn the Chuck an even number of half-turns with light inward pressure: · Note: Use just enough pressure to keep the Cam against the Cam Guide. Identifying Correctly Sharpened Drill Bits (and what to do with those that aren't!Bit is misaligned or the Cam failed to stay in contact with the Cam Guide during sharpening. The entire surface from the Cutting Edge to the Heel will have a finely ground surface without ridges or indentations. The Heel will always be lower than the Cutting Edge (positive relief). Carefully repeat the alignment and sharpening procedure, making sure to use light pressure to keep the Cam in contact with the Cam Guide during sharpening. Bit backing out or slipping out of the jaws when you are sharpening Too much pressure during sharpening, dirty Chuck, or Chuck not tightened enough. Realign the bit by carefully following steps 1 through 3 on page 7-8. Use just enough pressure to keep the Cam in contact with the Cam Guide. If the bit continues to slip, clean the Chuck as described on Page 17. Surface of the bit isn't smooth and/or heavy grinding sound. Too much drill bit is sticking out of the end of the chuck. During the re-alignment process, be sure to keep the White Triangle against the Cam Guide as you insert the Chuck into the Sharpening Port to set the depth of the bit. The bit should be pushed up inside the Chuck and should rotate slightly as the Chuck is plunged into the Sharpening Port and contacts the Diamond Sharpening Wheel. Push until the Chuck is fully inserted into the Port. Too many rotations of a small-diameter bit may result in incorrect sharpening and too few on a large bit may not sharpen enough. Large drill bits (3/8" to 1/2") will require more half-turns of the Chuck. [. . . ] Carefully realign the bit in the Chuck and set its depth in the Sharpening Port again. What can I do about flat spots on the bit point between the Cutting Edge and the Heel?To correct, apply light, inward pressure and rotate the Chuck smoothly while sharpening. With the Drill Doctor unplugged, shake accumulated drill bit grinding dust from behind the Wheel Access Cover into a disposable container. [. . . ]