3 separate grinding sections for quick shaping and trimming, beveling or refinishing, and spot grinding. Unique chrome-plated Tetra-Teeth are clog-free and grind in both directions. Recessed coarse teeth contain the drywall edge, and the staggered teeth design prevents clogging and allows dust to collect in the handle for controlled disposal. Raised fine teeth are ideal for beveling or smoothing the drywall edge, and siderail teeth allow notching and detailed work. Sleek design, 7" long for fewer strokes to achieve the same results. Embedded elastomer grip on each side of the handle for sure-grip performance.