The 18V MultiVolt 4-1/2" Paddle Switch Angle Grinder (G1812DFQ4) offers exceptional performance and safety. It delivers corded power with the flexibility of a cordless tool. The robust brushless motor delivers a no-load speed of 8,000 RPM, which allows you to take on a wide variety of tasks. The brushless motor is ultra efficient, extending product life and eliminating maintenance of armatures or carbon brushes. Auto-mode option automatically adjusts the RPM down when the tool is not under load, resulting in a decrease in noise and vibration, while also sparing the life of the battery for optimum performance. Provided safety features are a no-lock paddle switch, quick braking feature, kickback protection, zero voltage restart and soft start. A tool less wheel guard and 3 position anti-vibration side handle provide the user with increased operational efficiency. A removable dust filter offers additional protection for the motor against dust and debris and ensuring that the tool is operating effectively. The G1812DFQ4 18V Cordless 4-1/2" Paddle Switch Angle Grinder is a part of the expanding MultiVolt System of 18-Volt and 36-Volt power tools from Metabo HPT. GO lighter with the 18V batteries or GO longer with the unique MultiVolt battery that works on both 18V and 36V tools to double your runtime for up to 8.0Ah of runtime per charge for more power on the GO.