The Mueller-Kueps Pro-Xnife Kit, No. 268 500, includes three different blade types for universal use. The professional high-grade knives are designed to be used with a pulling motion and are ideal for cutting coolant hoses, zip ties, carpet, wire harnesses, plastic, door panels, and more. The two component handle with rubber grip allows users to use these knives without worrying about them slipping out of their hand.