To drill plastic and other materials that tend to "grab" the drill and make it dig in too much you need to stone the cutting edge different than for metals. With a small stone stone the cutting edges parallel with the length of the drill so the cutting edge is in line with the length of the drill , not slanted back with the spiral. Another way of saying is the cutting edge needs to be perpendicular to the material to be drilled/cut so it scrapes more and doesn't "suck" in as when the edge is sharper. This will spoil the drill for normal use but will save it from digging in and possibly spoiling what you are working on. It doesn't take much to to change the way the drill cuts. Try and experiment if you can on some scrap.
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Today's Featured Article - Good As New - by Bill Goodwin. In the summer of 1995, my father, Russ Goodwin, and I acquired the 1945 Farmall B that my grandfather used as an overseer on a farm in Waynesboro, Georgia. After my grandfather�s death in 1955, J.P. Rollins, son of the landowner, used the tractor. In the winter 1985, while in his possession the engine block cracked and was unrepairable. He had told my father
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