Because the knife is so important, besides the surgeon's scalpel, Kuan has made several knives of various edge angles of his own "invention" by cutting them out of steel plate and grinding them by hand.
因此關椿邁蛋雕用的雕刻刀，除外科手術刀外，還另外「開發」了用手工鋸鋼板磨成各種角度的刀片。