Milwaukee 48-66-1530 CHUCK 3/8" ALL METAL 3/8-24 (For 12 Volt Use)
This 3/8 inch two sleeve all metal Grip-Lok keyless chuck is standard equipment on 12 volt models 0502-20, 0502-23, 0502-25 and 0502-26. This chuck has hardened jaws for high gripping torque which prevents slippage.