I have one of their Tak [bleep] hunters AUS8-A Stainless. Its a good serviceable steel used by several companies. It is not available in the US, but companies like Al Mar Knives and Cold Steel,and some of Ontario's Rat series, have their blades ground in Japan , and sent here. It holds a a fair edge, and goes back to super sharp with just a ceramic rod. Most of their knives are hollow ground. Great for game animals.
Are you guessing?
