Milwaukee M12 BIW38 is a high-performance Sub-Compact Impact Wrench that measures 165mm in length making it ideal for working within confined spaces. Has a heavy-duty full metal gearbox and gears for superior durability and maximum torque. 3/8in square drive for use with universal sockets. The optimised handle provides improved grip and better control. On board fuel gauge, and LED light give added user convenience and illumination in low lit working conditions. REDLITHIUM-ION battery pack delivers twice the run time, up to 20% more power, twice the battery life and operates better down to -20C than other lithium-ion technologies. Individual battery cell monitoring optimises tool run time and ensures long term pack durability Flexible battery system that works with all Milwaukee M12 batteries. Specifications: Bit Holder: 3/8in SquareNo Load Speed: 0-2,500/min.Impacts Per Min: 0-3,300/min.Max Torque: 135NmThe Milwaukee M12 BIW38-0 Sub-Compact 3/8in Impact Wrench is supplied as a bare unit. No batteries or charger included.