High Quality: Forged from molybdenum-chromium steel, heat-treated for high hardness, impact resistance, wear resistance, stable performance, very durable. Specifications: 6-point socket size, 41mm, length 78mm/3.07 inches. Features: Black phosphate treatment, wear-resistant, impact-resistant, rust-resistant, six-point design increases the contact area between the sleeve and the fastener, which can be securely locked to reduce wear and tear. Wide Range of Uses: for 1/2 inch square head impact spanners, suitable for automotive repair, mechanical and electrical maintenance, home maintenance and other occasions, to provide you with a number of convenient choices. Packing List: 1*41mm Impact Socket-6 Point, Manufacturer: Crozgan