Blastrac's 1-8DEZ light profile shotblast machine was developed to handle floor edges and places that are hard to reach with standard sized machines. But it turns out that it can create deeper profiles as deep as 3/16ths of an inch through stencils when that is desired. The tool is powered by a 7-inch 110-volt angle grinder with a modified special gear setup. It is rated to provide a light to medium blast using S170 to S390 blast media. A separate vacuum unit collects the blast material and recycles the shot for reuse. The machine and vacuum unit costs less than half their next sized model. Blastrac 800-256-3440. .