Mantis Knives MU-2 Phil A.

One of the few folding fish filet knives on the market today. The trick with these types of knives is to use the right blade steel. The steel has to be flexible enough to be effective in action, resilient enough to fold back into its slim handle without hitting into the handle sides, and finally; it must have good anti-corrosion properties, after all…salt water provides a very harsh environment.