MultiSize Thread Set Includes eight metric thread sizes ranging from 75mm to 3.0mm, allowing you to handle various thread jobs efficiently without needing extra files. Steel Material Made with heat treated steel and finished with a black oxide coating, this tool offers rust resistance and durability for repeated use. Ergonomic Rubber Handle The doublesided rubber handle provides a comfortable grip and protects your hands during operation; its reversible design adds versatility. Focused on External Threads Tailored specifically for external threads, this tool is for repairing damaged threads on studs, bolts, screws, pipes, and fittings in any workshop or garage. Typical applications Automotive and workshop repairs: restore damaged external threads on bolts or studs in engines, suspensions, or machinery. Plumbing and pipe fittings: external threads on pipe fittings, adapters, and hoses in garages or service vehicles. Equipment maintenance: service heavy equipment and machinery where damaged external threads on fasteners can halt work.