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Boat Fishing & Boating A new forum at Striped-Bass.com for those fishing from boats and for boating in general

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Old 04-29-2012, 11:42 AM   #1
Fishpart
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We do a lot of machining of 316 almost all with HSS coated with TiN. Key is slow and steady and plenty of lubricant. If you can control the drilling, $olid carbide i$ best but very brittle so you can't dril by hand.

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Old 04-29-2012, 01:11 PM   #2
JohnR
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Cobalt bits and LOTS of cutting fluid. If you see smoke you don't have enough fluid.

The smaller the bit the faster you need to go. For example, I was doing some 1.3mm holes the other day (depth about 6mm) and I'm using 3K RPM. After I used a centering bit to start the hole.

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Old 04-29-2012, 02:09 PM   #3
leptar
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Norseman or CTD --- Magnum super premium 135degree split point... by either company do well...
Bits made to drill SS do so... Use thick cutting fluid not thin tapping fluid..

Have a Fastenal near by? you can get either mfg bit from them...

Get mechanic length for hand drilling.
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