Class 3-Jaw Design: Allows you to effortlessly hold round-shank drill bits from 0.8mm to 10mm (0.03-0.39 inch) securely.Keyless Design: Tool-free accessory allows you to quickly and easily lock and release.Quick Change Universal Fit: For use with impact driver, snaps easily into the power screwdriver.Perfect Drill Conversion Tool: Converts a cordless power screwdriver into a drill or grinder in seconds.It can NOT be used counterclockwise and NOT suitable for impact drivers or applications involving high torque load.Colour: blackMaterial: metalPackage Contents:1 * Chuck1 * 1/4Inch Hex Chuck Adapter1 * Round handle Adapter1 * Electric Conversion HeadOnly the above package content, other products are not included.Note: Light shooting 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.