Class 3-Jaw Design - Allows you to effortlessly hold round- drill bits from 1.5mm to 13mm securely. Key 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. Model Number: 3-Jaw drill chuck set Number of Jaws: 3 Power: Manual Product: Drilling Chuck Set Name: Drilling Machine Chuck Feature: Drilling Chuck with Key Chuck Converter: Drilling Chuck Converter Chuck Adapter: Drilling Chuck Adapter Quick Change Adapter: Drilling Chuck Hex Socket Femal SDS-Plus If there are any differences in the appearance of the accessories, it does not affect the use. Material: Metal colour: As shown Package Contents: 1 x 1/2inch Socket Square Converter with screw 1 x 1/2inch Socket Square Converter no screw 1 x 3/8inch SDS Plus shaft 1 x 1/4inch hex 1 x 1.5-13 mm drill chuck Only the above package content, other products are not included. Note: Light reflection 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.