1. Forged with chromium molybdenum steel material, surface heat treatment, high strength and durability.2. To prevent rust and corrosion, the black phosphate finish absorbs and retains oil, repelling moisture.3. 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.4. 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.5. Widely used in DIY hand-making, household maintenance, and most general repairs.Specification:Driver Size: 1 InchBit Size: 19mm (H19)Total Length: 98mm / 3.9 InchMaterial: Chromium Molybdenum Steel (CR-MO) Finish: PhosphatingPackage Content:1 x Hex Bit Socket.
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