Technicians will appreciate this set of rethreaders designed to repair exhaust temperature sensor plugs. Due to the extreme heat cycles and corrosive environment of modern diesel exhaust systems, EGT sensors become very difficult to remove without damaging the exhaust system. The shape and depth of the fittings are such that standard rethreaders cannot be used. These rethreaders are designed with a specific geometry that allows them to clean most types of damaged EGT sensor plugs and allow a new sensor to be installed without replacing the expensive exhaust system. The six different sizes and a special drive adapter included in the kit will accommodate repairs to most, if not all, EGT sensors used in automobiles, as well as light, medium, and heavy-duty trucks on the road today. Features: The square drive allows for the use of a standard driver. The square-to-hex adapter allows for the use of a 0.551 in. or 9/16 in. socket or wrench. There is no need to remove or replace the exhaust system. 6 sizes included. 12 x 1.0, 12 x 1.25, 12 x 1.5, 14 x 1.25, 14 x 1.5, 16 x 1.5 Specifications: Weight: 1 lb