Product Overview 4-pole frameless motor for longer life, more power and run time Paddle switch for comfort when operating Fully compatible with the M18 system, featuring over 200+ tools The MILWAUKEE M18 4-1/2" Cut-off/Grinder provides users with the speed, durability, and ease-of-use to handle industrial applications. The cut-off grinder has a 4-pole motor, delivering users with maximum power when cutting or grinding. The tool is the only cordless cut-off/grinder in the market to feature the user-preferred paddle switch, providing comfort and ease-of-use when operating in various positions. L-shape intake vents protect the grinder cut-off tool by keeping harmful debris from entering the tool and damaging internal components. The tool is powered by M18 REDLITHIUM battery packs (sold separately), providing users with 35% faster cutting speed and up to 50% more cuts on a single charge. Milwaukee 4-Pole Motor- Delivers maximum power when cutting or grinding Overload Protection- Prevents damage to the tool and battery in heavy duty situations Debris Baffles - L-shape vents keep debris from entering the tool and damaging internal components to help increase tool life. Tool Free, Burst Resistant Guard- Allows for quick, easy guard adjustments. Easy to access and actuate too free guard makes it easier and less time consuming to adjust the guard for various applications. Paddle Switch Design- The only cordless cut-off /grinder in the market with a paddle switch design Up to 35% faster cutting speed Up to 50% more cuts on a single charge 3-Position Side Handle- Provides optimal Control and Versatility