The DeWalt 20V MAX ATOMIC 4-1/2" Angle Grinder, No. DCG402B, is equipped with the DeWalt ANTI-ROTATION System to help maximize control. This feature quickly stops the wheel when a pinch, stall, or bind-up event is sensed, reducing reactionary torque. An ergonomic design allows this tool to access ultra tight spaces. Featuring a Lanyard Ready Attachment point, up to 445 MWO, and a maneuverable design, this grinder is ideal for working at height.