The 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 ½” rebar. With the XC5.0 battery attached, the Brushless Grinder's body weighs only 4.6 lbs and measures 12.25" in length. The Brushless Grinder includes an electronic clutch for kickback protection and overload protection to maximize motor life. The 5/8”-11 spindle and tool-free guard adjustments ensure faster adjustments and less downtime while fully compatible with the most common grinder accessories in the market. The compact and lightweight build allows for excellent control and comfort. The all-metal gear case ensures that the Brushless Grinder is built to last and gets the job done every time.