2305 Features: -Tool kit.-2.3mm & 3.2mm collets.-Flexible lightweight shaft attachment for precision work.-Double insulated.-80 piece accessory set for cutting, burr removal, polishing, shaping, and drilling.-Storage case for organization and security.-With flex shaft.-Overall dimensions : 3.8 H x 11.5 W x 7 D. Specifications: -1.0 amp motor.-8,000-30,000 RPM variable speed.