ssak dook / kitchen knife

Ssak dook is korean sound of cutting. It joined with strong point of kitchen knife and straw cutter. It is slicing and pressing force. Especially, this is useful for one-armed person. There are materials which it is hard to cut. It is round thing, slippery thing. When you cut these materials, you may get hurt. Because knife is slipping. Also, the thing that large and hard like radish, a fish with spines and a meat with cartilages. These materials need large force. But these materials are easy to cut with ssak dook.