Application：- for , electric, and pneumatic impact wrenches. Widely used in car, mechanical, equipment maintenance, and other most general repairs.About This Product/Features- Forged with chromium molybdenum steel material, surface heat treatment, high strength and durability.- To protect against rust and corrosion, the black phosphate finish absorbs and holds oil, repelling moisture.- Spring-loaded ball detent provides a secure hold onto sockets and prevents them from dropping.- 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.Specification：Drive Size: 1/2"Total Length: 75mm / 3"Material: Chrome Molybdenum Steel (CR-MO)Finish: Black PhosphatePackage: 1 Pack of Impact Extension Bar.
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