Best Seller | General Tools Thread Repair File for SAE 9, 10, 12, 16, 20, 27, 28, 32, Threads Per Inch SKU - 487697 The General Tool thread repair files are designed for restoring damaged external threads on studs, bolts, screws and extensions. The files can also be used as thread pitch gauges. Finished with a black oxide to prevent rust. This file will repair... ... more General Tools Thread Repair File for SAE 9, 10, 12, 16, 20, 27, 28, 32, Threads Per Inch SKU - 487697 The General Tool thread repair files are designed for restoring damaged external threads on studs, bolts, screws and extensions. The files can also be used as thread pitch gauges. Finished with a black oxide to prevent rust. This file will repair... | | $11.99 go to store |