The combination of speed and ease of setup allow this Hand Hole Grinder to out perform all other methods of repairing existing, worn, abraded and leaking hand hole sealing surfaces. The unique roller arrangement permits effortless contouring of "out-of-round" hand holes by following the existing shape.

Truing the grinder to an existing hole is accomplished by turning the four adjusting screws and aligning the stone to the adjacent sealing surface. The thumb wheel micro feed adjusts the proper depth-of-cut, so that minimal amounts of material are removed during the grinding process.