The Klutch KLiQ 20 Volt, 4-1/2in./5in. Paddle Switch Angle Grinder features a brushless motor that extends motor life 10X, while providing up to 60% more run time and reduces heat buildup. The 3-speed aluminum gearbox offers precise control in various applications. The 2-position handle offers increased comfort and ease of use. This angle grinder uses high-performance Klutch KLiQ Lithium-ion batteries (sold separately), designed to work with all Klutch 20 Volt power tools. With advanced technology, durable, chemical-resistant housings and convenient battery fuel gauges, Klutch KLiQ Lithium-ion batteries are your total power solution.