A fine three-part set in sizes from 1/2" to 1-1/2". The two-handled threadbox cuts the male threads, a matching tap die cuts the internal female threads, and a bottoming tap finishes off the female section.Threadbox is made of long-lasting hardwood with internal aluminum wear fittings and a steel cutter.Scroll down or click here for more information on the Tap and Die Set.   PDFs/Instructions 98N11.01 Complete Tap Die Set 1/2 in.