Re: Carbide drill bits?


Jack Burgess
 

Larry wrote:
As a machinist I would never use one for any thing with a Rockwell of less
than 56 and never hand drill with one.

Part of the original question was about hand drilling with #61-80 bits. I
would disagree with a blanket statement about hand drilling with small
bits...I won't hand drill in steel and hand drilling in brass could take all
day but hand drilling plastic or resin is not a problem.

Jack Burgess
www.yosemitevalleyrr.com

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