Each tap features a 2-1/2 to 3-1/2 thread chamfer, enhancing ease of use. Comprehensive 5-Piece NPT Pipe Tap Set in Plastic Case. Convenient Set Size: This compact set includes four essential NPT sizes (1/4"-18, 3/8"-18, 1/2"-14, and 3/4"-14) all housed in a durable plastic case for easy transport and storage.
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