"Comprehensive 81 piece, lifetime warranty set is designed uniquely for technicians and includes automotive specific sizes not found in traditional 75 piece sets","Features the patented Rapid Select Ratchet to quickly change between forward and reverse while using taps/dies without working a switch or flipping ratchet over","Machined from hardened imported Japanese tool steel alloy, chosen specifically for its ability to withstand abuse without fracturing","Includes adjustable tap holders and die holder that feature a 3/4\" (19mm) hex shape to be driven by included ratcheting tap wrench or standard sockets and wrenches","Sizes are roll stamped for legibility and durability","Includes Taps \u0026 Dies in the following sizes: M3x0.5, M3x0.6, M4x0.7, M4x0.75, M5x0.8, M5x0.9, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M9x1.0, M9x1.25,M10x1.0, M10x1.25, M10x1.5, M11x1.5,","M12x1.25, M12x1.5, M12x1.75, 1/8BSP, 4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13,1/2-20, 1/8 NPT","Rapid Select Ratchet, SAE pitch gauge, metric pitch gauge, die holder, small tap holder, large tap holder and screw driver 81 PIECE AUTO MASTER TAP AND DIE SET 81MATDS | Matco Tools