Noshyu Kanematsu Intestine Cutter 150mm High Carbon Steel Blade Knife It has a round ball shaped metal on the tip, because it is for cutting into tube like intestine without damage. It is high carbon steel.
This knife was made by one of knife makers in Seki, Gifu Japan. It is made for meat shops, butcher companies, and meat process companies, and not for selling retail market.
Blade Length; 6 inch (150mm) The width of the blade: Handle Length; 4 1/2 inch (115mm) Total Length; 10 1/2 inch (265mm) Knife weight is 1lb. 5oz. (594g) The heel part of the spine width is 2mm (1/8 inch) wide. Handle; probably, rosewood handle with 3 pieces of brass pins BLADE; mono high carbon steel