Seac Rip-Fish KnifeThe Rip Fish offers a asymmetric, double ground blade, excellent penetration with the tip and high cutting capacity on both the straight and serrated edges. Made of high performance martensitic stainless steel that lends the knife excellent resistance, to corrosion, wear, and a high hardness rating (>56 HRC). Hollow grind and with a high capacity for penetration and control on hard materials.