Joe AutoDrill wrote:
What RPM are you running?

Using coolant?

Manual drill press or machine with a feed?

Regards,
Joe Agro, Jr.

I was using 3/16" and slightly smaller bits at about 480RPM, using heavy
pipe thread cutting oil as a coolant/lubricant. Manual drill press.
1/2 (real) hp motor (claims it is a 3/4 hp).
Todd