The Makita DGA455Z 18V 4-1/2in Paddle Brushless Grinder is engineered for heavy-duty grinding applications, featuring a two-stage safety paddle switch and automatic speed control for optimal performance under varying loads. Equipped with a brushless DC motor, this grinder provides high power-to-weight ratio, reduced heat buildup, and extended use in manufacturing settings. eXtreme Protection Technology (XPT) safeguards against dust, debris, and liquids, while a soft start feature minimizes start-up shock. The tool’s ergonomic soft rubber grip enhances comfort and vibration absorption. Notable safety features include an anti-restart mechanism and an electronic current limiter. This tool is sold without a battery and charger, and includes essential accessories such as a 4-1/2in depressed center wheel, wheel cover, side handle, and lock nut wrench. The grinder operates at a no-load speed of 8,500 RPM, with a vibration level of 5.5 m/s² and a noise level of 80 dB(A), measuring 14-1/4in in length and weighing 4.2 lbs.