Motor driven hand-held power rotary tools; attachments therefor, namely, tools for converting rotary tools into a grinder, sander and polisher; and, accessories therefor, namely, bits, blades and cut-off wheels for use with ceramic wall tile, cement board, fiber backerboard, laminates, plastic, wood, marble, lathe, acoustic tile, acrylic, aluminum siding, drywall, fiberglass, foam board, hardwood, oriented strand board, plaster, plywood, solid surface material, stucco and the like