Description Features: * Sleeve specifications are diverse, wide range of use, can be used with tools to meet different work needs. * The sleeve itself is thickened, with strong impact resistance, smooth surface and no burrs to prevent operation damage. * Hexagon design, large contact surface, can effectively reduce the sharp corner wear of the nut, and the operation does not slip. * Forged with 45# steel, the whole high temperature heat treatment, high hardness, large torque, rust and wear resistance, durable. * Surface electrophoresis treatment, beautiful and comfortable, not easy to rust, and strong corrosion resistance, extending product life. * Applications: Construction machinery, machine repair, auto repair and other related industries Specifications: Name: 1/2 Pneumatic Sleeve Material: 45# Steel Product Model: 1/2-12.5MM Product surface: Phosphating 4CM Height: 8MM, 9MM, 10MM, 11MM, 12MM, 13MM, 14MM, 15MM,16MM, 17MM, 18MM, 19MM, 21MM, 22MM, 23MM, 24MM, 27MM, 30MM, 32MM 8CM Height: 8MM, 9MM, 10MM, 11MM, 12MM, 13MM, 14MM, 15MM, 16MM, 17MM, 18MM, 19MM, 21MM, 22MM, 23MM, 24MM, 27MM, 30MM, 32MM 12CM Height: 30MM, 32MM, 34MM, 36MM Package Content: 1 x Socket Wrench