General description This self-tightening chuck features a 1/4" keyless handle and is designed for easy setup and use, allowing for quick and effortless changes of utensil bits. Made from high-quality aluminum alloy, it is tough and rust-resistant, ensuring durability during use. Technical specifications Material: Aluminum alloy Color: Black Hex shank: 1/4" (6.35 mm) Capacity: 0.8 mm to 8 mm Compatibility and accessories Suitable for most power tools such as power drills, grinders, and screwdrivers Other information Included in delivery: 1 x Chuck