Tap and Die Set, High Speed Steel, Number of Pieces 110, Cutting Sizes 35, Die Type 1 In. OD Solid, 1-1/2 In. OD Adjustable (1PZ54) 1 and 1-1/2 In. OD Solid (1PZ38), Sizes 4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8-27NPT, 1/4-18NPT, 1/4-20, 1/4-24, 1/4-28, 1/4-32, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13, 1/2-20, 9/16-12, 9/16-18, 5/8-11, 5/8-18, 3/4-10, 3/4-16, M6 x 1.0, M8 x 1.25, M10 x 1.0, M10 x 1.5, M11 x 1.5, M12 x 1.5, M12 x 1.75, M14 x 1.25, M18 x 1.5 Taps and DiesQuickly restore or create internal or external threads in a wide range of sizes. Use on UNC, UNF, NPT, and NPTF threading. Includes threading specialties for tapping drill sizes. Meet American Metal Cutting Institute Standards for cut thread tolerance and ANSI-B94-1987 standards.Fully ground Custom-fit, blow-molded case