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cnc metalcraft
09-19-2008, 12:26 AM
im drill 3/8 hole in a 1/8 alum. I have destroyed my drill head used many differnt bits the router heads can only spin at 18000 or one at 8000, and last 4000, even drill head i 1500 slowest any ideas im getting a lot of work like this(nuts)

mc-motorsports
09-19-2008, 01:12 AM
1500 rpm? That's ok, use an endmill if a drill is gumming up, HSS, definatly not TiN coated though.

cnc metalcraft
09-19-2008, 08:33 AM
any plunge rates for any of that ?