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09-02-2020 #11
Amazing, I visited a place that drilled stainless steel filter discs for a certain phamaceutical company in Nottingham. Their finest holes were much smaller than a human hair and they were using carbide drills on a 1/8 shank. They wouldn't give me info on the feeds and speeds though.
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09-02-2020 #12
Yes, these were ground into 4" long 1/8 shank carbide blanks and there most commonly used size was 0.1mm. I could have sat and watched the grinding machine all day it was amazing. Don't think I could have touched the endmills without breaking one so how the hell they get a machine to do it blows my mind.!
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