A belt grinder attachment for powered rotary tools mounts an abrasive belt for movement transverse to the axis of the tool for ease of alignment of the belt on a work piece. The attachment body member can either be threaded onto the tool housing or be clamped thereon. An arm extends from the body member...http://www.google.com/patents/US4858390?utm_source=gb-gplus-sharePatent US4858390 - Belt grinder attachment for powered rotary tools
