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A comment on Making holes without an electric drill.

Re:Making holes without an electric drill by walterbell on Sunday July 17, 2022 @08:35PM (#32133147)
Some non-generic widgets:

PB Swiss center punch with tungsten carbide point for hard metals, https://www.pbswisstools.com/en/tools/quality-hand-tools/str...

YG-1 (South Korea) spiral flute tap, evacuates metal chips, useful for custom device enclosures, https://www.amazon.com/gp/product/B00F8T4ST2/ & https://yg1usa.com/

Norseman bits (USA), http://norsemandrill.com/

[ Parent | on HN ]
Re:Making holes without an electric drill by sbierwagen on Monday July 18, 2022 @01:30AM (#32135026)
>PB Swiss center punch with tungsten carbide point for hard metals

I feel like anyone drilling stuff that's harder than 40 HRC, or worse yet, 40+ HRC stainless steel; will be worrying more about bit choice or feeds and speeds than choice of center punch.

[ Parent | on HN ]