Hub for Hydraulic Root Cutter RSH 1B Category_Default Category Products Sewer Rod and Rodding Equipment Powerdrive Trailers For manholes you can eliminate Category_Default Category Products Motors and Tap Cutters For manholes you can eliminate the need for a controlled entry Comes with steel protective plate to protect magnet form picking up metal shavings while in your tool box Each hub has a 1” hollow shaft with ¼” keyway and through bolt to slip it right over the 1” shaft of the hydraulic root cutter and lock it in place This one is made especially for our nice thick 3 16” heavy duty saw blade which come standard in our root cutter kits