* Powered by a Honda GXH50 * Backpack configuration * Lightweight only 29.5 lb.* Quick-disconnect - patented quick-coupler system for quick easy changing of shafts. * Wide range of interchangeable and reversible flex shafts. Seven high amplitude heads from 3/4" diameter pencil size to 2 1/2" diameter are factory sealed and require no servicing. * Patented 1 7/8” rubber head prevents nicking or damage to epoxy-coated rebar, and also provides increased consolidation of concrete. * The quick-connect system provides fast, easy flex shaft changes, keeping the shaft connected and locked to the motor until you snap it out. No bearings to wear out.