M18 Fuel, 18V, 4-1/2"-5", Grinder, Paddle Switch No-Lock Kit, Powerstate Brushless Motor, 8,500 RPM, Thin Body Design Gives It Optimized Balance To Rest Easily In Your Hands, Tool Free Accessory Changes & Guard Adjustments Mean Less Downtime During Work, Includes: M18 Lithium Ion 5.0Ah Battery Pack, M18 & M12 Multi-Voltage Charger, Flange Nuts, Wheel Guard, Spanner Wrench & Carrying Case.