Milwaukee®'s high performance 4-pole motor delivers maximum power whilst maximising the power to weight ratio. REDLINKT overload protection electronics in tool and battery pack deliver best in class system durability. Full metal gear box delivers maximum performance and long life. 13 mm metal chuck for quick bit changes and bit retention. 18 stage torque adjustment for maximum flexibility.3 stage mode selector allows the user to switch between rotary, screw drive and percussion modes quickly and easily. On board fuel gauge and LED light. Flexible battery system: works with all Milwaukee® M18T batteries. REDLITHIUM-IONT battery pack delivers up to 2x more run time, up to 20% more power, up to 2x more battery life and operates. Better down to -20°C than other lithium-ion technologies. Individual battery cell monitoring optimises tool run time and ensures long term pack durability. 1 x 2.0Ah Battery.