Let us be clear: the Shinbu™, designed by James Williams, are specialized tools intended for military personnel and special forces operators. James developed this design to meet the specific requests of coalition forces overseas for a more powerful tactical tool than his CRKT Hissatsu™, which is in wide use. Historically, military swords have been sized to fit the fighting environment. Long swords, such as the English broad sword and Japanese katana, could only be used effectively on open fields of battle. Fighting in close or confined quarters required shorter swords, such as the sailor's cutlass and the Japanese wakizashi, which is similar in size to the Hisshou. These knives come into play when the operator's firearms cannot be used, as often happens in entry and search operations. They are designed for multiple carry options depending on the choice of the operator. The Shinbu dual grind Tanto blade is YK-30 high-carbon steel, high satin finished. The long, tapered tip grind is designed for maximum slashing power combined with superior penetration. At 13.3 ounces and a 9.25" blade, the Shinbu also offers superior slashing ability as compared to the Hissatsu.