Re: Sources for machinist/watchmaker-quality small twist drills redux
Ralph W. Brown
I’ve yet to read to other replies, but my “go to’ for things like that is McMaster-Carr (https://mcmaster.com/drill-bits). 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.
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?