The system's discs do not saw through metal with serrated teeth like a manual can-opener type ring cutter; rather the system uses the unique abrasive qualities of the two distinct types of discs, coupled with a low torque handpiece, to remove subsequent layers of material - much like the action of fine sandpaper or an emery board.
Because the system relies on abrasion, it's critical that the appropriate disc be selected and that the proper technique be used; the proper technique can best be described as: