Safety is the top priority when users are working on live parts. The insulated nut driver inserts from Wiha are the ideal tool for working on electrical systems. Combined with the insulated ratchet wrench or T-handle adapter, the nut driver inserts can be used for tightening and loosening hex screws and bolts. The insulated nut driver inserts undergo 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. The fully insulated tools prevent potential short circuits caused by unintentional contact, even in confined working environments.