Dremel and RotoZip are the leaders in variable speed precision power tools. They're ergonomically designed for comfort, and are rated for continuous use.  Our kits offer a wide variety of bits, grinding wheels, cutters, polishers and sanders. Use the Dremel for prcision work, and the RotoZip for commercial drywall or tough-to-get-at cutout work. Both are the best at what they do. We now carry Clarke's rotary tool, which we've found to be tough multi-use tool with a nice feel.