1/4 Inch Hexagonal Shank: Quick Connect Drill Chuck Tool with Universal 1/4 inch Hexagonal shank is suitable for most power drills. Material: Load Drill Bit Holder made of metal,with strong stability, durability External Rubber Protection: anti slip, popup drill adapter has a comfortable grip. Convenient To Replace: The clamping diameter of the chuck needs to be greater than 6.3mm. After the connection is stable, it is convenient to quickly replace the power tool accessories with a hexagonal handle. Application: Use for deck building, wood framing, installing plywood subfloor, building crates, and more Specification: Material: metal, rubber Shank: 1/4" Hexagonal Shank Package Includes: 1 Piece Hexagonal Shank Quick Change Convertor Adapter Note: Please allow slightly errors due to manual measurement and different monitors.