Re: Used Craftsman drill and bits
Those drills with that drill holder was used for Bronze, Brass and Aluminum.
Bronze and brass tend to pull a regular twist drill into the work-piece quicker than a person can control. Those straight flute drills don't make that long stringy chip.
A trick to use a twist drill on non-ferrous material is to dull the sharp edges a little so it won't pull in as bad.
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