This 1/2 inch Grip-Lok™ keyless chuck withstands the vibration of the hammering action while keeping a firm hold on the bit. This chuck is offered as standard equipment on the Milwaukee Hammer Drill model 0513-21. It can be used on any drill or hammer drill with a 1/2-20 threaded spindle and a 1/2 inch drilling capacity.

• 1/2 in. capacity, keyless chuck.
• 1/2 in. - 20 thread.
• Grip-Lok™ chuck prevents slippage when hammer drilling.