Uxcell 4mm Impact Hex Bit Socket 1/4 Square Drive 35mm Length CR-MO Metric Sizes 2 Pack

Forged with chromium-molybdenum steel material surface heat treatment high strength and durability. To prevent rust and corrosion the black phosphate finish absorbs and retains oil repelling moisture. The through-hole in the drive end locks onto the tang of impact wrenches or drivers so it won t fall off or stick on fastener heads. It has a radius corner design causing the socket to grasp the sturdy wall of the fastener instead of the corners thereby reducing the wear of the fastener. Widely used in DIY hand-making household maintenance and most general repairs.