Very nice forging! It would however benefit from being a little thinner and with having a sharper angle for the edge (more like 25 degrees, this looks a little like 45 degrees)
영상에서 사용한 것은 boiled linseed oil인데 빨리 마르게 하는 화학 첨가제가 있어서 피부가 민감한 사람은 raw linseed oil(아마유)를 추천합니다. 천천히 마르는 대신 나무에 더 깊숙히 들어갑니다. 건강식품으로 파는 flaxseed oil이나 들기름을 사용해도 됩니다.
You don't punch holes over the pritchel all the time. What he did was perfectly acceptable in terms of procedure. I can agree with the fact he does this way too cold. The steel needs to be at a bright orange or near yellow. Doing it a such low temperatures puts a lot of stress into the steel.
