Tattoo Machine Front & Rear Binding Posts - Shop for high-quality front and rear binding posts and binder sets made from super-conductive brass or copper. We offer Baltimore Street Irons front-drilled brass binder sets, brass back binding posts in different shapes, copper binder sets, rear binding posts made from copper or brass, and other options. If you need guidance replacing your coil tattoo machine's front or rear binding post assembly, check out our Guide to Replacing Coil Tattoo Machine Parts.