Re: maker of small drill bits (#78, #80) for hand drilling resin kits

Dennis Storzek <dennis@...>

On Wed, Jul 13, 2022 at 09:00 AM, hockenheim68 wrote:
I've used guitar string forever. Cut as described above but also sometimes hammered and stoned to make a spear point if using larger diameter strings.
For reference here is a pic of a spear point used for drilling glass:

This is a carbide tipped tool, the tip is wider than the shank, but doesn't have to be. Also, for use in plastic and resin the elliptical curves aren't needed, as Andrew says, just flatten the end of the steel wire and stone angles to a point.

Dennis Storzek

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