[SIZE] - Clamping Range: 2-13mm, Mounting Hole: 1/2-20UNF. [CHUCK TYPE] - Keyless Drill Chuck, can be quick and easily replaced drill bits without chuck key. [3-JAW] - Classic 3 jaws design drill chuck with excellent clamping capability. Quenching hardening and precision grinding to assure good wear-resistant. [APPLICATIONS] - It is for many different types of cordless drill. [MAINTENANCE] - Clean up the mechanical waste and foreign matter left in the drill chuck in time after using it.
