Features and Benefits:POWERSTATE™ Brushless Motor: delivers maximum power and up to 10X longer motor lifeREDLINK PLUS™ Intelligence provides optimized performance, electronic clutch, and overload protection using total system communication between tool, battery and chargerREDLITHIUM™ XC 5.0 Battery Pack provides superior pack construction, electronics, and performance to deliver 2X more run-time and more work over pack lifePOWER TO GRIND: World’s first cordless grinder with corded performanceDURABILITY: Same metal housing and gearing system as legendary high performance corded grindersKit Includes an M18™ REDLITHIUM™ XC5.0 Extended Capacity Battery Pack, M18™ and M12™ multi-voltage charger and a carrying case. The M18 FUEL™ 4-1/2" / 5" Grinder supplies maximum sustained power to complete the toughest grinding, surface preparation and cutting applications. The 18-volt lithium-ion grinder’s thin body design gives it optimized balance to rest easily in your hands. Tool-free accessory changes and guard adjustments mean less downtime during work. The grinder is built with the same tool body, gearing system and anti-vibration side handle as Milwaukee’s legendary high-performance corded grinders for maximum durability on the job. Grinding wheel sold separately.