4 -pole motor delivers maximum power when cutting or grinding. Overload protection prevents damage to the tool and battery in abusive 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. 3-position side handle provides optimal control and versatility. Includes: (1) M18 Cordless Lithium-Ion 4-1/2" cut off grinder and (1) side handle.