Milwaukee 2686-20 - M18™ Brushless 4-1/2" / 5" Cut-Off Grinder, Paddle SwitchThe MILWAUKEE M18 Brushless 4 1 2 5 Cut Off Grinder delivers power and runtime while maintaining a compact size. Milwaukee built and optimized the 11,000 rpm brushless motor specifically for cutting and surfacing applications. The Brushless Grinder, paired with built in REDLINK power tool technology and REDLITHIUM batteries, efficiently delivers power and provides longer battery life, resulting in up to 80 cuts in rebar. With the XC5. 0 battery