Check the listing for details. 1" Drive by 21mm 6-Point Impact Socket CR-V Steel 80mm Length Standard. Condition: New. Listed at 31.56 USD. * Made of chrome vanadium steel construction for strength and durability.* With black phosphate finish, to protect against rust and corrosion.* Has 6-point opening that snugly fits the hex shape of fastener heads, allowing it to apply maximum torque without slipping.* To prevent round-off under stress, it grips the flat sides of fastener heads rather than the corners.* 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.* Widely used in DIY hand-making, household maintenance, and most general repairs.Specifications:* Socket Size: 21mm* Drive Size: 1-inch* Total Length: 80mm / 3.15-inch* Material: Chrome Vanadium Steel (CR-V)* Finish: Black Phosphate* Color: BlackPackage Content:* 1 x 6-Point Impact Sockets.