Quick Clamp 1/2-20UNF Keyless Chuck Self Tightening for Cordless Drill Hand Drilling Quick Change Drill

Unique design drill chuck can easily convert the torque applied by the handle into a larger clamping force, hold the drill bit firmly and solidly, not easy to loosen. keyless chuck, clamping range: 2 ~ 13 mm/0.04 ~ 0.51 inches, connection size 1/2-20UNF, diameter: 43 mm/1.69 inches, length: 58 mm/2.28 inches, it is suitable for many types of drills. This is a keyless self-tightening drill chuck; The keyless and self-tightening type design is more in line with human engineering. Quick change self-tightening drill chuck is easy to install and disassemble, saves effort and more convenient, no complex operation required. Made under strict control standards, it must undergo many and safety inspections before leaving the factory to ensure and stability.