Irwin Tap and Die Set, Size: 54 pc, Material: Carbide steel, Type: NON METRIC with UNC, UNF, NPT Tap thread, Number of taps: 23, Includes: #6-32 TPI UNC, #8-32 TPI UNC, #10-24 TPI UNC, #10-32 TPI UNF, #12-24 TPI UNC, 1/4"-20 TPI UNC, 1/4"-28 TPI UNF, 5/16"-18 TPI UNC, 5/16"-24 TPI UNF, 3/8"-16 TPI UNC, 3/8"-24 TPI UNF, 7/16"-14 TPI UNC, 7/16"-20 TPI UNF, 1/2"-13 TPI UNC, 1/2"-20 TPI UNF, 9/16"-12 TPI UNC, 9/16"-18 TPI UNF, 5/8"-11 TPI UNC, 5/8"-18 TPI UNF, 3/4"-10 TPI UNC, 3/4"-16 TPI UNF, 1/8"-27 TPI NPT, 1/4"-18 TPI NPT DIE SIZES; UNC, UNF, NPT DIE THREAD TYPE; NUMBER OF DIES: 23, (23) TAP, (2) ADJUSTABLE DIE STOCK, (2) ADJUSTABLE HANDLE TAP WRENCH, (1) T-HANDLE WRENCH, (1) PITCH GAUGE, (1) SCREWDRIVER SET CONTENTS; HANSON BRAND; TAP STYLE PLUG; DIE SHAPE HEXAGON