Drill Chuck Drill Chuck 1/2-20UNF Mount 2-13mm Quick Change Keyless Hand Drill Chuck Self-Tightening Drill Chuck for Multiple Purposes Guazhuni <p>[Special Design]: This keyless chuck has a self-tightening design, which makes the chuck more reliable when tightening the tool</p> <p>[Save Time and Effort]: The inner thrust bearing helps convert the torque applied by the handle into a greater clamping force</p> <p>[Easy to Use]: The self-tightening chuck adopts a more ergonomic design for easy operation and quick change</p> <p>[Fitment]: The hand drill chuck is suitable for 1050W or more impact drills</p> <p>[Specification]: Connection Size: 1/2-20UNF; Clamping Range: 2-13mm/0.04-0.51in; Diameter: 43mm/1.69in</p> <p>Features:</p> <p>The chuck can hold the drill bit firmly and sturdy, not easy to loosen. Durable and has a long service life, suitable for long-term work. Easy to install and disassemble, more convenient and labor-saving. Wide range of collet sizes from 2 to 13mm, suitable for many kinds of drill bits. Keyless and self-tightening type design is more in line with human engineering.</p> <p>Specification:</p> <p>Diameter: 43mm/1.69in</p> <p>Length: 71mm/2.8in</p> <p>Connection Size: 1/2-20UNF</p> <p>Clamping Range: 2~13mm/0.04~0.51in</p> <p>Package List:</p> <p>1 * Drill Chuck</p> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.