The worlds first cordless grinder delivers the power of a corded grinder with up to 2X more run time and up to 10X longer motor life. The 18 Volt lithium-ion grinders 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 high performance corded grinders for maximum durability on the job. Grinding wheel sold separately.