Lightweight with two speeds and can be used with any Dremel accessory bit with up to a 1/8" shank. Specs: 6500/13000 RPM weighs 9 oz. Includes: tool (1) 3-hour battery charger (1) 401 mandrel (1) 432 1/2" 120 grit sanding band (1) 414 small felt wheel (1) silicon carbide grinding stone (1) wrench.null