High speed steel car knife/white steel bar is as sharp as a scalpel
If you really do sword that can not only consider the hardness, must also consider toughness, or you can be careful what you throw a broken accidentally fell underground it, ha ha, because of too hardware is generally too brittle.
It can sharpen a sharp blade. But it's only for small, straight, straight, because it's hard, it's tough, it's short and it's ok, if it's long, it's easy to break. And this is because of the hardness, so the processing takes a lot of time and effort, and it is very painful to grind. Be patient when you process. Don't make the strange look of yangjiang river. Simple and practical.
You can choose the powder high speed steel, which breaks the high speed steel and then reels it, and the hardness is better
