The Milwaukee 2939-20 18V Cordless 1/4" Braking Die Grinder Kit is a powerful and versatile tool designed for optimal performance in various grinding applications. It features a slide switch for easy operation and offers a braking mechanism for enhanced safety and control during use. This kit includes a robust 5.0 AH battery, ensuring extended runtime, along with a charger for quick and convenient recharging. Ideal for professionals and DIY enthusiasts alike, this cordless die grinder delivers the performance needed for fine grinding, polishing, and surface preparation tasks, making it a reliable addition to any toolkit.