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Old 08-19-2019, 07:28 AM
Doug S Doug S is offline
CAMaster Owner
Join Date: Jan 2018
Location: Bastrop, Texas
Posts: 282

First, I use a 5mm brad point bit for drilling so you don't get any heat or chipping. I run one pass, no pecking at 150 IPM plunge rate. I think I am running 12,000 of the spindle but I can verify that tonight.

Sure wish I had a 5 head boring block.
Existing:-2014 Cobra 5x10 ATC w/ 10 hp spindle, Mozaik, 25 hp Becker High Vacuum Pump, 5 HP Oneida DC-Central Texas
New:-2014 Cobra 5x12 ATC w/ 10 hp spindle, pop up pins, phenolic top, lathe, vacuum relief valve, mister system, 25 HP Blower.
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