40-piece heavy-duty hand tool set designed for durability and long life in demanding tasks Multi-function M3-M12 screw, nut tap, and die kit - Includes taps for M3 to M12 screws, nut taps for internal threads, and dies for external threads. Covers the most common metric sizes for repair and fabrication. Versatile applications - Suitable for car repair and maintenance, general building and fix-it work, and a wide range of DIY projects. Easy to use - Wrench and thread gauge included to help identify sizes and guide tapping and threading. Intended for both beginners and professionals. Portable and organized - Comes in a compact, portable bag for easy transport and on-the-go use, with a space-efficient design that keeps tools and accessories organized. Key attributes - Size and compatibility: M3 through M12 metric threads - Function: screw taps, nut taps, and dies for internal and external threading - Material and durability: built for heavy-duty use in workshop or field conditions - Performance: reliable threading tools designed for repeatable, accurate results Practical use scenarios - Automotive: repair damaged or stripped threads on fasteners in engine bays or chassis, restoring grip and assembly integrity - Home and workshop: rethread bolts in furniture, appliances, or metal fixtures; perform quick repairs on metal components - DIY projects: create or restore threads on small machinery, bikes, or custom metal parts for projects and improvements