Increases your efficiency : Allows users to fasten with a nut driver and TorqueVario ½-S T electric. Offers you full protection : Each tool individually tested at 10,000 V AC and approved for 1,000 V AC. Product dimensions : 88 x 20 x 20 mm (LxWxD) Application : For the safe installation of terminals and sleeves, conductor connections and fastening of conductor lines. For working on live parts up to 1,000 V AC. Safety is the top priority when users are working on live parts. The insulated nut driver adapter allows the torque screwdriver with T-handle TorqueVario ½-S to be used to fasten with nut drivers. The insulated adapter undergoes routine individual piece testing as per the international IEC 60900 standard, thus providing users with a tool to work safely on live parts up to 1,000 V AC. Only compatible with the torque screwdriver with T-handle TorqueVario ½-S T electric.