General description The Keyless Drill Chuck is a high-quality, self-tightening drill chuck designed for multi-purpose use. It securely clamps the drill, ensuring it does not loosen during operation, making it ideal for long hours of work with a long service life. Technical specifications Diameter: 43mm / 1.69 inch Length: 72.5mm / 2.85 inch Connection Size: 1/2-20 UNF Clamping Range: 2-13mm / 0.04-0.51 inch Usage Suitable for various drills due to its wide clamping size range. Easy to disassemble and assemble, providing a labor-saving and convenient experience. Ergonomic keyless self-tightening design enhances usability. Other information Packing List: 1 x Drill Chuck