RIDGID introduces the R86047 18V 4-1/2 in. Paddle Switch Angle Grinder (Tool Only). RIDGID'S brushless motor technology delivers maximum performance and longer runtime. The powerful brushless motor in this grinder delivers up to 25% more power than its predecessor model (R86042B), with 9,000 RPM. The ergonomic paddle switch design makes using this tool for extended periods of time easier and more comfortable. Also, with tool-free wheel and guard adjustment, users can make fast and frequent accessory changes to maximize productivity and minimize downtime. Using an electronic break mechanism, the wheel quickly stops rotating as the user lets go of the paddle switch. As always, the RIDGID 18V Paddle Switch Angle Grinder is 100% compatible with all RIDGID 18V batteries.