Unbeatable Durability: Our tap and die set is crafted from high-grade HRC56 hardened bearing steel, effortlessly handling heavy loads and high pressures. Its exceptional wear and corrosion resistance make it the perfect choice for tackling even harsh working environments. Superior Craftsmanship: Each tap and die undergoes meticulous CNC machining, 800°C heat treatment, and a double polishing process to ensure unparalleled precision and durability. The secondary polishing delivers an ultra-smooth surface, minimizing friction and wear while enhancing aesthetics and sharpness. All-in-One Tap & Die Set: This tap die set includes 51 pcs taps, 51 pcs dies, 1 T-type tap wrench, 1 screwdriver, 1 tap wrench(m3-m12), 1 tap wrench(m6-m20), 1 head, 1 die wrench(25.4mm), 1 die wrench(38mm), 1 screw pitch gauge SAE, 1 screw pitch gauge metric, and 5 extractors. Portable Storage Case: Never worry about lost or misplaced tools again! Our tap & die sets come in a convenient and portable storage case, allowing you to effortlessly carry your tools wherever you go. It's ideal for home maintenance, including door frames, lighting installation, plumbing, gas pipelines, HVAC ventilation ducts, component installation, repairs, and automotive maintenance. Professional Design: The tap and die kit features a hexagonal die design that distributes force more evenly during work. With stringent manufacturing processes, the product is robust, durable, and resistant to breakage. The tapered teeth of the tapping tools are specially designed for easy and smooth threading initiation while preventing over-threading.