Surfcasting Sinker Mold Matrix

This is a matrix I personally designed for casting plaster molds used to produce gripper-style sinkers — a popular choice in surfcasting fishing. It’s ideal for anglers and hobbyists who want to make their own sinkers. The matrix is optimized for user-friendly handling and accurate shape replication. Just pour in plaster, let it harden — and you’ll have a durable mold ready for lead casting.I use 1.2 mm stainless steel wire for the gripper arms. Sometimes I drill the mold slightly wider to fit 1.5 mm wire (when drilling into lead, don’t forget to lubricate the drill bit well — lead melts onto the bit and can cause it to break, so feed the drill slowly and carefully).Designed for casting gripper sinkers, ideal for surfcastingPrintable on standard FDM 3D printersEasy to use – pour, wait, and castSaves time and ensures consistent resultsPerfect for hobbyists and professional tackle makers alike