The Dryzone System Cutting Tool has two blades. One small pointed blade, which you can use to scratch and cut open the plug on Dryzone mastic cartridges, and a rectangular guillotine blade, which is ideal for cutting Dryrod DPC Rods to size. The cutter has a protective cap for the pointed blade and the guillotine blade is safely stored within the body, which ensures the cutter is safe to transport.