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User Panel
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Posted: 10/12/2005 12:34:25 PM EDT
[#1]
Cobalt drill bits are nice, and what I prefer. If you're using a drill press, use the lowest speed as your bits are getting dulled quickly, overheating and probably turning a blue color. I highly recommend a Drill Doctor for those that drill a lot. It's like having a new sharp bit every time.
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Posted: 10/12/2005 12:42:19 PM EDT
[#2]
I might add that you also want to use only moderate pressure when drilling. If a bit is sharp it will cut without undue force. And it's easy to over-force the bit with a press.
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Posted: 10/12/2005 12:45:01 PM EDT
[#3]
Don't push too hard and cut slower with more oil... can't do much more than that.
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Posted: 10/12/2005 12:45:17 PM EDT
[#4]
all good info. moderate pressure is the way to go. set the speed so that when you use moderate pressure the drill but cuts those nice long spirals of steel.
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