Variable-speed dial adjusts belt speed between 1000 and 2300 feet per minute Features two sanding arms for access to extremely tight spaces and awkward angles Belt pivots up to 120 degrees to meet the needs of any project Brushless motor provides better performance, a longer lifespan, and less maintenance than brushed alternatives 2.0 amp-hour lithium-ion battery with onboard LED charge gauge delivers consistent power at any charge level, and is compatible with the entire WEN 20V Max Cordless Power Tool series Remember when you werent bound by cords? Smooth out tight corners and strange contours in wood, metal, plastics and more with the WEN 20V Max Variable Speed Cordless Brushless Detailing File Sander. The narrow belt pivots through a range of 120 degrees to meet the particular needs of the project at hand. Belt tracking is easily adjusted with the tool-free tracking knob. Easily switch between the four included sanding belt grits (40, 60, 80, and 120 grit) with the tool-free belt changing system. Adjust the variable speed dial for speeds anywhere from 1000 to 2300 feet per minute. Features a brushless motor for more runtime, better performance, and less maintenance than brushed alternatives. With an overmolded auxiliary handle for maximum control and two sanding belt sizes (1/2-by-18-inch or 5/16-by-18-inch), youll be able to tackle any project that comes your way. The included 2.0 amp-hour lithium-ion battery provides consistently powerful performance at any level of charge, includes an onboard LED charge gauge, and is cross-compatible with the entire WEN 20V Max Lithium-Ion Cordless Power Tool line. Includes two sanding arms (1/2 and 5/16-inch) and 16 sanding belts. And because its a WEN product, your cordless sander comes backed by a two-year warranty, a stocked inventory of replacement parts, and a friendly customer help line, all to make sure you remember WEN.For CA residents, click here for Proposition 65 informationClick here to view the product manual