8-in-1 0.75, 1.0, 1.25, 1.5, 1.75, 2.0, 2.5, 3mm Thread Repair Tool Steel Thread File for Studs, Bolts, Screws, Fittings

Steel after heat treatment has high hardness and black oxide coating on the surface to prevent rust. This is a high hardness 8 in 1 thread restorative file. 8 different metric thread files: 0.75/1.0/1.25/1.5/1.75/2.0/2.5/3mm, 8 kinds of thread in 1, no need to change another wire restoration file during operation, easy to use. The durable rubber cover will protect your hand when using the wire file, the handle is reversible, the removable rubber sleeve is easy to slide and can be switched as needed. This thread file is a good tool for external thread repair, not for internal thread. Designed to repair damaged external threads on studs, bolts, screws, pipes and fittings. The thread file is suitable for left or right handed threads, a few minutes of work can allow you to easily fix the threads and tighten the nuts.