Size - Fit Thread Sizes: 12/13/14/16/18/20/24/28 SAE/UN, Total Length: 215mm / 8.5", File Length: 75mm / 3", Handle Length: 78mm / 3.1", Thickness: 11mm / 0.43". Adopt a double-head design with various specifications of 12/13/14/16/18/20/24/28.
Material - Made of 45 carbon steel with a quenched and blackened surface, ensuring its high hardness, durability, corrosion resistance and wear resistance, greatly extending its service life.
Features - During use, file repeatedly along the direction of the thread until the deformed part is removed. After the deformed part is removed, the nut can be reused. Equipped with a detachable handle rubber cover, providing a comfortable grip during long-term use.
Application - Suitable for quickly restoring the crushed threads of machinery, motor vehicle and other machinery. Can be used to repair rusted fasteners on studs, bolts, screws, pipes and fittings.
Notice - Please select a suitable thread file and file along the correct direction and angle of the threads with even pressure to avoid uneven finishing.