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Tap threads for left-hand threaded fasteners.
These taps cut left-hand threads while keeping chips clear.
Tap left-hand threads for pipe and conduit.
Form general purpose Acme threads.
Add threads to holes in preparation for installing helical inserts.
For start-to-finish tapping of left-hand threads, these sets include one taper-, one plug-, and one bottoming-chamfer tap.
Inserts come with a through-hole tap and installation tool.