Description:

[Size] - 1/2-inch drive socket, M10 spline bit, 5.51-inch (140mm) total length.. [Torque Strength] - Quenched and heat-treated S2 alloy steel bits, hardness arrived at 58-62 HRC, reduce wear-outs. High strength chrome vanadium steel sockets, increase turning power.. [Longevity] - Completely anti-rust and corrosion-resistant with polished chrome-plated finish socket and copper paint electroplated drill bit treatment.. [Precision Bits] - Automatically process bit tips to ensure correct size, chamfered ends insert smoothly into fastener head, reducing wear.. [Widely Used] - Use with ratchet to improve speed in tightening Torx drive fasteners. And the product has no insulation properties and is not suitable for electrical environments..