The unique patented design of the cutter-head provides a reducing-triangle cutting action which prevents braided lines, mono, and stranded cable from fraying. This keeps the line and cable intact and allows an easy and sure fit into a cable crimp. It does not leave any strands sticking out to cause injury to your hands. Our Tri-Shear design allows you to quickly release a fish by sliding the cutting barrel down the line to the cutting tip without having to handle the line. The Tri-Shear is not meant for cutting hooks. The blue Tri-Shear is unlike any cutting tool on the market and cleanly cuts the following type of material: Mono, Wire (Multiple and Single Stran),Cable, Kevlar and Spectra lines. The tool body is made from aircraft quality 6061 billet (block) aluminum. Internal hardware is made of a durable corrosion-resistant 303 stainless steel for salt and fresh water use.