Deba 120 mm (5.3 in) Blue#2Type: Deba Finish: Kurouchi Blade Length: 120 mm (4. 7 in) Construction: Awase Core Edge Steel: Aogami (Blue) #2 HRC (Rockwell Hardness): 61 63 Handle: Walnut with resin ferrule Bevel: Double Bevel Place of Origin: Tosa A kitchen knife for filleting fish has a thick, wide, and heavy blade with a thin and sharp tip. Its thick base and heavy blade make it easy to cut through bones and decapitate fish. Its sharp tip also makes it easier to cut and slice