1/2″(13mm) 5513-1M Enhanced Professional Keyless Drill Chuck with Locking System Single Metal Sleeve

? Enhanced Locking System Inside. Jacobs Patented, Enhanced Ratchet Locking System. Very strong bit holding capability under severe drilling conditions.

? “Click” Technology. Provides audible and tactile feedback when chuck is properly tightening.

? “Anti-Lock” Technology. Prevents chuck from locking open at max. capacity.

? Compact Design. Shorten chuck length even to 51mm to match current compact design for portable tools.

? Heavy Duty Application. Design for professiobal tool, carbide jaws optional.

? For use on all of portable DC drill or hammer drill. Especially for high speed / high torque drills.