The Dewalt DCG409VS is a variable speed version of the DCG409 Flexvolt Advantage cordless angle grinder. These machines will work with any DeWalt 18v XR or 54v Flexvolt XR battery, but as part of the Flexvolt Advantage range they are designed to deliver increased performance when used with a Flexvolt battery, making them ideal for more havy duty applications. The DCG409VS benefits from several DeWalt Perform & Protect features for improved safety, and an ergonomic softgrip housing which is comfortable to use throughout the day. Features & BenefitsFlexvolt Advantage: runs off 18v XR or 54v Flexvolt batteriesDelivers maximum performance when used with a Flexvolt batteryRubber Overmould provides enhanced grip and comfortBrushless motor provides improved runtime and durabilityVariable speed for increased versatilityMesh covers over vents help to reduce ingress of dust and debris SpecificationsBattery Voltage: 18v / 54vBattery Type: DeWalt XR Lithium IonDisc Si