The Duval Pad Cutter is an excellent way to cut leather and plastic pads. The pad cutter saves time and wear and teear on your body. Simply shape shoe to fit, place shoe on pad, and mark outline of shoe. Turn the handle as you feed the pad material into the cutter. Do Not trim pads while mounted to shoes. These blades are tempered steel and could chip if the shoe should bump them. Pad cutter can be mounted on any flat surface or fit a 7/8'' or 1'' hardy hole. Replacement blades are available.