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908/930 908/930 is offline
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Join Date: May 2012
Location: BC, Canada
Posts: 2,237
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A930Rocket, Search tool RAKE, right now that cutter has positive rake ( the surface that the chip flows over) what I am suggesting is neutral rake ( basically flat front) negative rake also can be used. $60 for that, more then I was thinking. If you are only using it for counterboring a small grind should not hurt it much, just make sure you grind the right area. The end mill flutes are long lots of practice grinds available. Try grinding a small flat or negative rake on one of your old 1/2 drill bits and see what it cuts like in steel.

Could have started a machining thread.
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Last edited by 908/930; 12-09-2024 at 06:32 PM..
Old 12-09-2024, 06:07 PM
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