* Full metal gearbox * 171mm overall length * 138Nm torque * 1/2″ square drive with pin detent * LED light High performance sub compact impact wrench measures 171 mm in length making it ideal for working within confined spaces. REDLINK overload protection electronics in tool and battery pack deliver best in class system durability. Heavy duty full metal gearbox and gears for superior durability and maximum torque. 1/2″ square drive with pin detent for use with universal sockets. Optimised handle for better control and improved grip. Individual battery cell monitoring optimises tool run time and ensures long term pack durability. On board fuel gauge and LED light – added user convenience and illumination in low lit working conditions. REDLITHIUM battery pack provides superior pack construction, electronics and fade-free performance to deliver more run time and more work over pack life. Flexible battery system: works with all MILWAUKEE M12 batteries. Milwaukee M12 BIW12-0 Sub Compact 1/2″ Impact Wrench with Pin Detent Body Only