2-pack for the Clauss 18503 Rotary Cutter, Clauss cutting instruments have been the choice of professionals since 1877. This professional heritage means Clauss tools are engineered for the demands of continuous daily use. This is made of Titanium Bonded cutlery-grade steel and is through-hardened to hold an edge. Clauss True Professional producst will withstand the toughest task and continue over extended use.