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Drill Bits

General welding questions that dont fit in TIG, MIG, Stick, or Certification etc.

Re: Drill Bits

Postby MFleet » Thu Sep 21, 2017 6:57 pm

Another thing is the flute length on the double ended. They are mainly sold for sheet metal, so a flute length that is twice or more the thickness of the material is preferred. Something like this 3/16" x 2-3/16" Long x 1/2" Flute Length.
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Re: Drill Bits

Postby JohnMc » Sun Sep 24, 2017 5:57 pm

3/16 really isn't that small of a drill to hand bomb. If you're having problems the drills could be bad, is the steel really mild steel are you trying to drill a flame cut edge? Or rigidity. I am thinking maybe rigidity as you mentioned long chips. Long chips are great on a machine. Good sign you are working the drill. With hand drilling you only need to strive for any kind of chip.
As for drills I have had good luck with KFC tools house brand.
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Re: Drill Bits

Postby PeteM » Mon Sep 25, 2017 9:45 pm

LtBadd wrote:
kiwi2wheels wrote:Using a dark sulphur cutting oil, Rigid make a good one, will do wonders for drill life and ease of cutting.

I've had real good luck with Tap Magic It's a cutting fluid, not just for tapping as the name might imply


That stuff is the best!
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Re: Drill Bits

Postby thatoneguy » Thu Oct 19, 2017 10:26 pm

I know I'm a little late on this... But I've actually used. Lucas Oil Transmission Stop Slip as my cutting oil for quite a while... Cheap, big bottle with a pointed snout that makes it convenient and it actually works extremely well!!!

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Re: Drill Bits

Postby 79jasper » Sun Oct 29, 2017 7:19 pm

I've heard boelube is good. Have yet to try it though.

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