Sizes: M3x0.5, M3x0.6, M4x0.7, M4x0.75, M5x0.8, M5x0.9, M6x1.0, M6x0.75, M7x1.0, M7x0.75, M8x1.25, M8x1.0, M10x1.25, M10x1.5, M12x1.75, M12x1.5, 1/8-27NPT. Unbeatable Durability: Our tap and die set is crafted from high-grade HRC55-62 hardened bearing steel, effortlessly handling heavy loads and high pressures.