Impact rating, corrosion resistancefor industrial or mechanical use,Spring loaded brake ball ensures secure socketConvert any power/cordless drill to an electric nut driveConvert a drill to a fast socket driverMost suitable for increasing torque projectsHelps prevent socket breakage or peelingTake advantage of the drill with this impact-level socket adapter kit. Use a drill in a high torque project without disconnecting or stripping the socket.1/4 inch Hex Shank to: 1/4 inch square drive 3/8 inch square drive 1/2 inch square drivecolour: blackMaterial: Chromium vanadium steelPackage Contents: 3 * socket adaptersOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.