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Date: | Wed, 3 May 2017 16:32:04 -0400 |
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Paul, I have been using a drill bit for years without any trouble. In
shaping the punch tip, I have been careful not to heat the drill bit to
preserve its hardness. I suppose I could get a small arbor press but I
have been using my drill press to do the punching. I clamp the belt
which drives the drill so the chuck cannot turn, tighten the punch in
the chuck and then punch happily away. The holly sustains the punch well
though there is some wastage. I make so many tongues at a time that
throwing a few away is of no consequence. Having the punch stroke moving
perfectly in a single plane should alleviate any tendency of the punch
to bend, which the drill press does. I hope this helps.
Rob
--
ROBERT BROOKE HARPSICHORDS
4214 18th Ave W
Bradenton, FL 34205
www.robertbrookeharpsichords.com
941-746-6725
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