SAE UNF thread restoring file covers 9, 10, 12, 16, 20, 27, 28 and 32 threads per inch, while the SAE UNC file covers 11, 12, 13, 14, 16, 18, 20 and 24 TPI, giving you comprehensive fine and coarse thread repair options for automotive, machinery and general maintenance tasks. Metric thread file includes 0.75mm, 1.00mm, 1.25mm, 1.50mm, 1.75mm, 2.00mm, 2.50mm and 3.00mm pitches, ideal for restoring stripped or corroded threads on metric fasteners, axles and pipe fittings, and ensuring compatibility with a wide range of European and equipment. Built to last from 40Cr alloy steel with a protective black oxide coating and professional heat treatment, these thread restoring tools resist wear, deformation and , maintaining cutting edges and reliable performance under frequent use in demanding conditions. Complete 3-piece thread restorer file set includes a full range of popular SAE UNF, SAE UNC and metric sizes so you can quickly rescue damaged external threads on bolts, studs, screws and pipes without replacing hardware, saving both time and money in your garage or workshop. User-friendly design features removable handles and protective plastic caps that shield your hands from edges while providing a secure, comfortable grip, making thread recovery , more controlled and efficient even when working in tight or awkward spaces on vehicles or machinery., Weight: 710.0 pounds, Manufacturer: IJSDNVJNDX