Voltage: 18 V Wheel Diameter: 4 1/2″ No Load RPM: 9000 Spindle Size: 5/8″ Spindle Lock: Yes Tool Weight: 5.9 lbs. Replacement Battery Model No.: TLZ452 L-shape vents keep debris from entering the tool and damaging internal components. Overload protection to prevent overheating. Tool free guard adjustment, paddle switch design. Includes: (2x) 18 V XC Lithium-Ion batteries, cutting wheel, tool bag, wrench, side handle and charger.