Quote:
Originally Posted by john r b
Question why use a carbide bit on steel? Only bit you had??
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I bought a drill press and a bit set. I know you are not supposed to use a carbide bit with a hand held drill or tool but I had trouble drilling the 1st hole out with a cobalt bit(maybe too fast rotation). I didn’t have any problem with the carbide bit. I suppose if you go slow and use lubrication to control the heat then HSS or Cobalt would work without any problem at all.
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Last edited by Moto7man; 07-07-2018 at 12:31 PM.
Reason: Spelling
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