Temco 6 Gauge 48in - 3/8 5/16 in Hole Sizes Red Solar Battery Cables Power AWG Solar Inverter Golf Cart Car Glue Sealed Discount applied automatically when quantity lots are bought. First Hole Size: 3/8", Second Hole Size: 5/16" 6 AWG, Copper Conductor Max Voltage: 600 V, Max Amps: 115 Nominal Outside Diameter: 0.32" / Stranding (qty. dia): 259/0.01"