Improvement of Leather Sheath (7)
The leather sheath immediately after the renewal had a three-layer structure, but we found that even with two layers, depending on the knife, problems such as “the sheath easily falling out” did not seem to occur in particular.
革サヤの改良 (7)
リニューアル直後の革サヤは3層構造でしたが、包丁によっては2層であっても『サヤが抜けやすい』などの問題は特に起きなさそうなことが分かりました。