Class 3-Jaw Design - Securely holds round-shank drill bits from 1.5mm to 13mm with ease. Key Design - Tool-free operation allows quick and easy locking and releasing. Quick Change Universal Fit - Compatible with impact drivers and easily snaps into power screwdrivers. Perfect Drill Conversion Tool - Converts a cordless power screwdriver into a drill or grinder in seconds. Not suitable for counterclockwise use 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 Female SDS-Plus Minor variations in accessory appearance may occur but do not affect functionality. Material: Metal Color: As shown Package Contents: 1 x 1/2 inch Socket Square Converter with screw 1 x 1/2 inch Socket Square Converter without screw 1 x 3/8 inch SDS Plus shaft 1 x 1/4 inch hex shank 1 x 1.5-13 mm drill chuck Only the listed items are included; other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error is +/- 1-3 cm.