Essential when fastening heavy mono or wire, double crimps are the go to for anglers making big fish rigs for sharks and when targeting bigger conger eels. Our crimps are made from soft brass which requires less force to crimp reducing the chances of line damage, especially with mono lines. To ensure they are crimped correctly, dedicated crimping pliers such as the Tronixpro Crimping Pliers should be used for maximum strength. They are available in a wide range of sizes to fit wire and thicker mono of most diameters available.