User manual DRILL DOCTOR 350X

[. . . ] Make sure switch is in the "OFF" position before plugging in. Watch what you are doing, use common sense and do not operate the tool when you are tired. 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 moving parts, breakage of parts, mounting and any other conditions that may affect its operation. [. . . ] 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. 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. 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. 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. a well-sharpened bit will have a smooth surface from Cutting Edge to Heel. It may take two or three complete sharpenings (repeat all steps) to re-sharpen a very dull or chipped large drill bit. Tighten until the bit no longer moves in the chuck The new Chuck design on the 350X enables you to sharpen short bits as easily as longer ones. Note that it is OK for the Chuck Fingers to come into contact with the Sharpening Wheel. Plunge the Chuck into the Sharpening Port until it contacts the Sharpening Wheel. remove the Chuck and rotate one half-turn to the opposite White Triangle. [. . . ] Can I change a 135° drill bit into a 118° drill bit?You can change the point angle of any drill bit from 135° to 118° by using normal sharpening procedures. You can double the life of the Diamond Sharpening Wheel by reversing it before you replace it. The Diamond 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. [. . . ]