• Serrated interior.• Prefilled with oxide inhibitor.• Installed with industry standard 'O' and 'D' dies.• Dual Rated for Copper and Aluminum Conductor.• Contact factory if using ACSR(Compact).• Suitable for use in circuits rated 35KV or less; proper high voltage spacing and insulation techniques must be used.• Listed with Ilsco tools ND-58 and ILC-15.• CSA File AP5465