Features:Use with a torque wrench to tighten fasteners to required specificationsIncludes: Hex inch sizes: 1/4, 9/32, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 in. Hex metric sizes: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 mm