Stump grinding is a technique performed by a specialized machine and a professional operator to remove the tree stump quickly and efficiently. By comparison, manual removal of a large tree stump is more costly, hazardous, and time-consuming than stump grinding. The stump grinding machine uses a rotating disc to cut into and around the base of the stump. This cuts through its roots and lifts it up off of the ground. The operator can then use the machine to grind up all remaining pieces or chip them into smaller pieces for easy removal.