Tap & Drill Sets, 4-40 by Du-Bro

Du-Bro
DUB361
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5 (2)
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This is a 4-40 tap and drill set from Du-Bro.Tap handle sold separately part# DUB633.

This product was added to our catalog on June 25, 2007.

Brian Strange
Verified Owner
Friday, May 24 2013 (about 3 years ago)
Du-Bro Tap & Drill Sets, 4-40
Not the best drill and tap set but gets the job done. Creates clean strong threads. Drill bit dulls REALLY fast though.
Mike Bethe
Verified Owner
Sunday, Mar 24 2013 (about 3 years ago)
Du-Bro Tap & Drill Sets, 4-40
I use it to clean the threads out where Loctite has been used.