March 2024 Tip: Twist Drill Grinding

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Knowing whether to use a blunt or acute point is critical when using a twist drill. This may require modifying (grinding) the standard drill point angle to accommodate those needs. Download and use this tip sheet for the best points to use on the most frequently used materials including: thin sheet metal, plastics, wood, soft and medium hard brass, fiber, rubber, aluminum, marble, heat-treated steels, and many more.

If you like this post, you might also like my February 2024 tip which discusses drill bit nomenclature and provides a download for easy access to those named parts.

Thanks for visiting www.MachinistKalc.com today.

twist drill grinding




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