Gamakatsu Brands Saltwater – In creating Gamakatsu® fishing hooks only the most premium grade of high carbon steel is used, insuring against any blemishes which can weaken the hook. Gamakatsu® claims to have thee most advanced tempering system in the world. Every hook is heated to the exact temperature then cooled in oil. This makes super strong, but not brittle, hooks. Gamakatsu Brands Saltwater. The sharpening process is claimed to be the most modern in the world, and results in a perfectly sharp conical points. Compare to Ahrex Hooks. See our Freshwater Gamakatsu range.