Milwaukee Brushless Motor: Optimized for efficiency, this motor delivers over 50% more run-time and 2X longer life than brushed motors. Also delivers 500 in-lbs. of torque and 0-400/0-1,800 RPM for a wide range of drilling & fastening applications. REDLINK Intelligence: Advanced overload protection defends against abusive applications and monitors the temperature to prevent damage and ensure maximum tool & battery life. REDLITHIUM Battery: Superior pack construction, electronics, and performance deliver more work per charge and more work over pack life than any battery on the market. Peak Torque: 500 in-lbs.