This DEWALT brushless small angle grinder requires no time changing brushes, and offers a longer motor life. It offers a high level of protection and its break stops the wheel in 2 seconds or less. The Kickback Break engages maximum force to stop the wheel when there is a pinch, stall, or bind-up to reduce kickback. The grinder will also shut off in those events to further protect the user. | DEWALT 4.5" 20V MAX XR Paddle Switch Small Angle Grinder (Tool Only) DCG413B