Ahh 1.2mm Drill, sorry I seen 4mm and got that stuck in my head. What I have seen done is a dremel in a tool post for tiny drills
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02-28-2020, 01:32 AM
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Ahh 1.2mm Drill, sorry I seen 4mm and got that...
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02-27-2020, 11:46 PM
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Re: Drilling into 316 stainless steel with 0.0472 hss tin covered step drill bit
Your rpm is way too high, I work with 316 SS everyday of the week making hydraulic fittings and for HSS we stick to cutting speed of 12-15m/min which works out at 954-1192 revs and a feed of 0.004 to...
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