The M18 Brushless 7-1/4" Circular Saw delivers up to 40% more power than circular saws with brushed motors while providing up to 30% more run-time as well. The Milwaukee built motor, REDLINK electronics and REDLITHIUM XC5.0 battery (sold separately) provide more efficient power delivery, more power and fewer trips to the charger. With 5,000 RPM that 2631 provides smooth cutting and at only 9.0 lbs. it is lighter than most corded saws. The saw also features an integrated rafter hook, magnesium guards, an aluminum shoe and LED light.