The RE757 is a large ring terminal insulated with high dielectric-strength nylon for wire size #6 AWG. These ring terminals have funneled barrel entry, deep internal serrations, brazed seam, and lolly-pop style tongue. Length 1.83 inches, .82 inches width, maximum insulation .395 inches, bolt hole 1/2 inches. The terminal is high-conductivity electrolytic copper, electro-tin plated, with color-coded insulation, rated for 105°C max temperature. Installing tool TBM6S.