The Dremel 4000 variable speed rotary tool offers the highest performance and most versatility of all Dremel rotary tools. The increased strength of its motor plus electronic feedback circuitry enables consistent performance at all speed levels. Dremel 4000 can use all existing Dremel accessories and attachments plus high-performance attachments to complete the widest range of projects. A slim, ergonomic body provides a 360-degree grip zone for comfort and control in any grip position. Dremel 4000 High Performance Rotary Tool Circle Cutter/Straight Edge Guide Sanding/Grinding Guide Storage Case Includes 30 genuine Dremel accessories Quick Start Book