Traditional Areca nut cutter (Giraya) metallurgy: steel blade inserts and brass filigree handles?

The traditional Sri Lankan betel nut cutter (Giraya) is a composite metallurgical tool designed to slice hard dried areca nuts (Areca catechu). Because decorative brass is too soft to maintain a sharp edge against rock-hard nuts, smiths forge-weld a tempered high-carbon steel shear blade into the upper brass jaw. The handles are sculpted through lost-wax bronze casting into zoomorphic shapes: stylized Serapendiya mythical beasts, dragons (Makara), or standing maidens. The brass surfaces are chiseled with silver filigree wire inlay (Damascening), riveted together with a brass pivot pin.