User manual DRILL DOCTOR SB REV 0

[. . . ] I'd also like to invite you to visit our website at www. Demonstrations of all operations with the sights and sounds leading to successful drill bit sharpening · Service and contact numbers Again, thank you for buying a Drill Doctor®. Now go enjoy its convenience and quality. For your own safety, please read this User's Guide before operating the Drill Doctor® . [. . . ] 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. The bit isn't completely ground yet. Continue sharpening the bit until the chisel is clean and straight. If the machine quits removing material before the chisel is clean, realign and sharpen again. (Model SB users can increase or decrease MTO (material take-off) to speed up this process. 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. 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. Put the bit in the Chuck as normal, but tighten Chuck so that it is just snug enough for the bit to move freely. 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 118º notch on the Alignment Port. Now, push the Chuck the rest of the way in. 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. 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. ) The Model SB comes equipped with that Large-Bit Chuck. [. . . ] When touching the Sharpening Wheel (with the machine unplugged), the lower portion feels too smooth (nonabrasive). When sharpening the drill bit, it takes too many halfturns to sharpen. 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. [. . . ]