Re: Sources for machinist/watchmaker-quality small twist drills redux

Ralph W. Brown

Hi Denny,
I’ve yet to read to other replies, but my “go to’ for things like that is McMaster-Carr (  I’m particularly fond of the uncoated cobalt steel wire gauge bits.  I recently purchased a new HHS 2-56 taps from them as well, and it is far superior to any others I’ve seen or used in that size.  Service has always been excellent as well.
Ralph Brown
Portland, Maine
PRRT&HS No. 3966
NMRA No. L2532


From: Denny Anspach
Sent: Wednesday, July 24, 2019 4:39 PM
Subject: [RealSTMFC] Sources for machinist/watchmaker-quality small twist drills redux
My most hateful modeling chore is locating and drilling for grabs and handrails, etc. I machine drill when i can with carbide drills, but practically,  most have to be done by hand; and I am totally frustrated by the sheer plethora of dull #78-80 twist drills that seem to be endlessly supplied to us by almost all usual hobby vendors. This morning, after a failure to adequately be able to hand drill through some tough plastic (#79), I tossed the errant drill in favor of a new one, also from a popular hobby supplier.  The new one could not cut butter either, and in the attempt to do so actually  bent over (did..not..break!) at a right angle like bending a wire!  Now, I do have a large supply of sharp (and brittle) carbide tip drills, but they are too risky to use with hand drilling- as you all already know.

So....where do you all find high quality reliably sharp tiny twist drills, most favorably from American, German, Swiss, or Japanese origins?


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