Copper seamless barrel has center stop indentations used to indicate when wire is fully inserted into each side of the barrel Barrel is designed with an internal chamfer at the wire entry to ensure smooth insertion of the wire, preventing possible damaging of the wire strands during insertion Electro-tin-plated unless otherwise specified to reduce galvanic corrosion (bi-metallic) and resist corrosive elements Barrel is color coded to ensure proper die and installation tooling is selected Long barrel allows for an increased number of crimps which will increase the mechanical strength of the connection while allowing the connection to operate at a lower temperature rating