Rockers have known about the “roto zip” for years. This small router from Roto Zip Tool Corp. simplifies cutting knockouts in drywall for electrical boxes, plumbing stubs, and furnace ductwork. And in the last few years this little router has been improved. The latest RotoMite not only cuts drywall, but is one of the best tools available for cutting irregular shapes in cementitious backerboard, acoustical ceiling tile, ceramic wall tile, cabinet backs, fiberglass, laminates, and plywood. This makes it a highly versatile tool that every remodeler should consider owning. Zip Bits The RotoMite is essentially a laminate trimmer — a small 28,000-rpm router — with a few special features. The switch is protected from dust by a plastic cover like you see on