Quote:
Originally Posted by Jeff in Pa
9/64 is .1406 It's on the small side for difficult materials. ( as in too easy to quickly lose an edge ) The Fastenal drill set should be a decent one if it's a Made in the USA set.
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It is indeed made in USA.
I checked out Precision Twist & Guhring: the PT's are available at Amazon, as are the hideously expensive Guhring's. Neither are inexpensive.
I located a carbide-tipped twist drill at buydrillbits.com, described as "super heavy duty, for hardened metals". It's the same price as the two you mentioned. What do you think?