MER9ARNISTNTFC Mercury Arnis Fixed Blade TantoThe Mercury Arnis is a no nonsense fixed blade built for serious work, with a 2. 5 inch stonewash 440 stainless tanto blade and one piece construction that eliminates any weak points. The compact 6 inch overall length makes it equally at home in a kitchen, workshop, or field kit, while the stonewash finish hides wear and resists corrosion. Tanto geometry gives you a reinforced tip for piercing and controlled cuts, backed by 440 stainless durability.