General description Monument 2649F Spare Blade is designed for use with the MON2644 28mm Plastic Pipe Cutter. This blade is effective on a variety of materials including PVC, polybutylene, MDP, polyethylene, HEP20®, plastic overflow pipe, plastic electrical conduit, supertube, mini trunking, rubber hose, pneumatic pipe, and electrical sleeving. Usage To use the cutter, simply place it over the pipe to be cut and gently twist while depressing the handles to achieve a clean cut.