View Full Version : Drilling 3/32'' guide holes through metal
12-19-2008, 06:33 PM
I can't seem to drill these guide holes even though I'm using a cobalt drill bit. What am I doing wrong?
12-19-2008, 06:52 PM
I can't speak to what you are drilling but for metal in general you need to use oil to lube it and drill with a fairly slow RPM. I've drill a bunch hardened metal screwheads to attach safety wire(motorcycle) and that's what you need to do
12-19-2008, 06:55 PM
Thanks! I'll try that.
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