The DCS355D2 is now available as a one battery alternative as the DCS355D1 56% more run time that standard brush type motors - A standard motor contains carbon brushes which generate friction, DeWalt XR Brushless motor eliminates this wasted energy, maximising the life and runtime of the tool. Can be used to cut wood, metal, plastic, or drywall materials. With the appropriate blade or attachment it can also be used for detailed sanding, grout removal, or scraping tasks. The quick change accessory system allows you to change blades and attachments to be swapped in and out quickly and safely without using tools. A dual grip variable speed trigger provides ultimate speed and safe application control. Depth control straight cut guide increasing cutting accuracy during detailed .