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 ½″ 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