If you want to avoid the bit walking all over the place, cut the bit in half so it is now not so long. Cut it as short as you can and have it useful. The drill will be stiffer and do less walking.
Another trick is to put a tube sleeve over most of the bit exposing only a short length at the tip. This again is a way of stiffening the bit to reduce it walking .
al
"R.A. & G.D. Whiting" wrote
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Ridiculous advice.
: > Another trick is to put a tube sleeve over most of the bit exposing only a : > short length at the tip. This again is a way of stiffening the bit to reduce : > it walking : -------------------- : : Ridiculous advice.
DKYON - makes sense to me; the shorter the bit, the less flexing it does.
------------- "KTØT" wrote
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OP posted that he chucked the drill as short as possible.
Yipes! If one does this the cutting edge has been taken off the tip. Make certain to grind or file a point back onto it, and then sharpen it. I've never tried to sharpen a #78. I usually just throw them away.
Cut off the shank then.
Jay CNS&M North Shore Line - "First and fastest"
Ah, now I understand.
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