100% brand new and high quality Easy to use and install Conveniently, safely & quickly Easily locks onto and releases drill bits Allows hex drive power tools to use conventional drill bits Convert any 1/4-inch hex shank screwdriver into a drill Use this chuck to convert any cordless screwdriver into a drill or grinder Universal driver 1/4-inch hex shank, snaps right into the power screwdriver Driver shank: 1/4-inch hex. Use this chuck to convert any cordless screwdriver into a drill or grinder Universal driver 1/4-inch hex shank, snaps right into the power screwdriver Specifications: Material: Carbon Steel 1/4-Inch Shank Keyless Chuck Conversion Tool Color: Black (as picture shown) Connecting Shank (Rod): 1/4 (6.35mm) Hex Shank Clamping range: 0.3-3mm 1/4" easy snap-in hex shank Keyless chuck finger tightens for easy drill bit changes Accepts drill bits up to 1/4" in diameter Allows hex drive power tools to use conventional drill bits NOTE: Please allow 1-2mm differs due to manual measurement, thanks. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you. Package includes: 1pc 0.3mm-3mm 1/4-Inch Shank Keyless Chuck Conversion Tool