【Brief Product Description】 Brand new and high quality thread repair tool set. 【Professional production】 Anti-corrosion treatment, not easy to rust, long service life. 【Selected materials】 Made of high quality steel with high hardness and good wear resistance. 【For your convenience】 Equipped with a 4-screw sleeve, convenient to use when repairing threads. 【The main purpose】 Used to repair damaged spark plug threads. Features: Brand new and high quality thread repair tool set. Anti-corrosion treatment, not easy to rust, long service life. Made of high quality steel with high hardness and good wear resistance. Equipped with a 4-screw sleeve, convenient to use when repairing threads. Used to repair damaged spark plug threads. Specification: Condition: 100% Brand New Material: Steel Color: Black Function: Used to repair damaged spark plug threads Size: 3/8", 7/16", 1/2", 3/4" Fitment: Fit for Ford Ranger Fit for Kia Cerato Fit for Mazda 3 Fit for Mitsubishi Triton Fit for Nissan Skyline