The Rockwell RK5101K SoniCrafter 37-Piece Variable Speed Complete Professional Kit comes with the SoniCrafter — one of the most versatile power tools ever invented — plus different accessories for a variety of applications.  The SoniCrafter's super-high-frequency oscillating action makes the RK5107K the go-to tool if you want a smooth-running tool that can do just about everything — from cutting to sanding, polishing, scraping, shaping, and removing grout.  The RK5101K SoniCrafter Professional Kit comes with accessories that can tackle jobs in wood, fiberglass, thin metal, plastic, masonry, carpet and flooring, and more.