User manual DRILL DOCTOR 250

[. . . ] A small bit requires a light pressure and may only take a couple of turns to sharpen. A large bit will need greater pressure and will take additional turns or more to sharpen. B Now, loosen the chuck knob slightly, turning counterclockwise, just until the drill bit begins to slide through the chuck jaws. B Release the pusher button and rotate the drill bit until the clamp arms grip the bit at its narrowest width. Drill Stop Clamp Arms 3/32" to 1/2" Chuck CORRECT Alignment Tube ® On/Off Switch INCORRECT CAM POST C Press the pusher button in and insert the chucked drill bit into the alignment tube. [. . . ] It is used for drilling soft or mild materials such as cold rolled steel, aluminum, and wood. MASONRY POINT: Masonry drill bits are easily sharpened with your 250 Handyman. The masonry drill bit you sharpen with your 250 Handyman will drill well. SPLIT POINT: This drill point has an additional set of cutting lips along the tip or chisel edge of the drill. Split point drill bits can be sharpened many times with the 250 Handyman. Press in the pusher button and insert the chucked drill bit into the alignment tube. Slowly release the pusher button allowing the clamp arms to grab the bit and pull it to the drill stop. Make certain that the flats on the chuck are engaged with the flats inside the alignment tube. Using the alignment viewer visually check that the drill bit is up against the drill stop. Remember the clamp arms need to be in the narrowest width of the drill bit fluting. If they are not, turn the drill bit until they are and then tighten the chuck. Look into the back of the chuck at the chucked small bit to check them. If they are not straight then slightly loosen the chuck knob until the jaws are straight. Sharpen the small bit with a light pressure and only two white-mark to white mark rotations. Wear Eye Protection. Never touch internal parts of the sharpner when the sharpener is on. [. . . ] Re-assemble carefully, making sure that all of the jaws are in their respective grooves. Anatomy of a Drill Bit LIP RELIEF WEB THICKNESS FLUTE LENGTH HEEL CHISEL EDGE Masonry Drill Bits. . . 1. Press the pusher button, and insert the chucked drill bit into the alignment tube. To align the masonry bit, start with the carbide insert in a verticle position, then turn the bit to the right to an approximate 1:00 to 2:00 o'clock position. [. . . ]