It is mainly use in municipal construction project, used for cutting and repairing manhole cover. Until now, manhole castings that needed to be replaced or repaired due to frost damage, settlement or the results of extreme traffic, had to be cut loose by the use of tiresome and expensive labor. It took several hours to complete one single unit. The cost of equipment, labor and traffic control were extremely high. With HCN manhole cutter, the production on this type of repair work is increased significantly. Again, back injuries are reduced dramatically. It’s really an ideal tool for road maintenance and municipal construction project.