Posted 4/14/2012 11:36 (#2335696 - in reply to #2335332) Subject: RE: horrible cutting drill bit
Northeast Indiana (Auburn)
Did you start with a 1" drill? If so that is the problem. Start with a 1/4" then 3/8" then 1/2" then 5/8" then 3/4" then 7/8" then 15/16" then 1". Start out at 300rpm and slow down to 50rpm as the drill size gets bigger.
horrible cutting drill bit
