Drill guide bushing
By Jason U.
on Dec 05, 2022
Bought these to use on a home made scope block mounting jig I am fabricating to mount Unertl and Winchester scope blocks on rifle barrels. The bushings are marked for the size of pilot bit, the set covers the 3 sizes needed for #6 machine screws of multiple threadings, not just 6-48. I could have made my own but when you do the math foster must pay their machinist about $2/hour. The quality and finish are excellent.
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