Kolvoii 86-Piece Tap and Die Set, SAE & Metric #4\u20135\/8" & M3\u2013M16, Heavy-Duty GCr15 Steel Rethreading Tool Kit with Titanium Coating for Cutting & Rethreading Internal and External Threads

All-in-One SAE & Metric Threading Kit：Kolvoii 86-piece tap and die set includes both SAE (#4“5/8") and Metric (M3“M16) coarse and fine threads. Designed for cutting, repairing, or rethreading fasteners and holes with precision and efficiency | Titanium-Coated GCr15 Steel: Made of industrial-grade GCr15 bearing steel, heat-treated to Rockwell 60 HRC, and coated with titanium plating for enhanced strength, corrosion resistance, and longer lifespan”built to withstand heavy-duty use in any workshop | Precision CNC Machined Teeth: CNC-ground cutting edges provide clean and accurate threads across materials like steel, aluminum, brass, copper, and cast iron. Reduces friction and cross-threading for smoother, faster thread repair | Upgraded Hex-shaped Dies: Hexagonal dies allow easy gripping and turning with standard wrenches or sockets, providing greater control and torque in tight or hard-to-reach spaces | Adjustable Tap & Die Wrenches: Adjustable wrenches fit multiple tap and die sizes with secure locking and fine-tension control for precise alignment and steady threading under load | Complete Accessory Kit: 78 taps and dies, long-handle tap & die wrenches, adjustable tap and die wrenches, T-handle tap wrench, screwdriver, and metric & SAE thread pitch gauges, all neatly arranged in a rugged blow-molded case | Versatile for Multiple Applications: Widely used for repairing stripped threads on bolts, screws, and holes, restoring external threads on rods and bolts, threading iron plates and rods, and maintaining machinery. Essential for automotive, machinery repair, and demanding DIY tasks