In a nutshell, these work great but cost too much.I bought a set of control cable cutters because ordinary diagonals tend to crush the outer cable housings of bicycle control cables. They cut, but it can take a considerable effort to get the end of the housings round again so the inner cable passes through without binding. That's where these cutters come in. They don't mash the cable housings flat. It saves a lot of time. This tool makes a nice cut on the inner cables too--no fraying. They work very nicely.Only complaint: this tool seems over-priced.