From the Manufacturer The new Dremel 4000 offers users the benefits of Rotary tool, versatility, comfort and value all of the owner's Dremel expect from our products. Dremel 4000 High-Performance Rotary Tool The 4000 offers a variable speed rotary tool more versatile and highest performing of all Dremel rotary tools. The force of a motor with more than online feedback loops provides consistent performance at all speeds. Slim ergonomic body offers a space of 360 degrees to a control handle in any position. Separate on / off switch and variable speed dial allows you to speed up the adjustment of cost and maintains the selected speed. Use all Dremel accessories. (Mexico) Featu