A lot of work
As previously stated by others it requires a load of work to make it nice. I have the polished version it arrived totally blunt, and no original antique Japanese tanto are not blunt, they are literally razor sharp if properly polished and were honed along with the katana or tachi before battle. It took me the best part of a week to re grind and polish it on my Japanese stones mine is now zero ground with a properly cross polished kisaki with yokote. The steel feels and sound's very hard so I am suspicious of the heat treatment it is a lovely thing to look at now but I wouldn't trust it if my life depended on it. If like me you are into Japanese stuff and can sort it out it's a nice addition to the collection but your money is better spent with Cold Steel on something from their Tanto range. Hiennie were outstanding as usual.