2"-11-1/2 NPT TAPER PIPE DIE, 4" O.D.2"-11-1/2 NPT TAPER PIPE DIE, 4" O.D. 5-816-070, 11-1/2 THREADS PER INCH This is a round adjustable type HSS die for cutting tapered pipe threads. It comes from the factory preset to the specific size indicated. DO NOT CHANGE unless you want to cut oversized or undersized threads by just turning the adjusting screw in or out! They are designed for cutting external threads, either by hand, with a die stock, floating die holder or by chucking up on a lathe chuck. Dies are manufactured with a 2-3 thread chamfer on the front face and a 1 to 1-1/2 thread chamfer on the rear. These type dies are available in R.H. and L.H. fractional threads, metric and in special thread pitch sizes. The standard O.D. sizes are 13/16", 1", 1-1/2", 2", 2-1/2" and 3". Additional special pitch sizes are available, T S Salesman for details!
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