Kolvoii 86-Piece Tap and Die Set, Metric Size M3 to M16 and SAE Size #4 to 5/8", Titanium-Coated GCr15 Steel Rethreading Tool Kit with Coarse and Fine Threads for Internal and External Threads

Expanded SAE & Metric Threading RangeUpgraded 86-piece tap and die set covering SAE #45/8" and Metric M3M16 with coarse and fine threads. Designed for cutting, repairing, and rethreading larger fasteners and deeper threadsbuilt for heavier workshop demands | Titanium-Coated GCr15 Steel: Manufactured from heat-treated GCr15 bearing steel (60 HRC) with a titanium coating that enhances surface hardness, corrosion resistance, and tool lifespan. Ideal for high-frequency use and tougher materials | Precision CNC Machined Cutting 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 for Higher Torque: Hexagonal dies allow direct use with standard wrenches or sockets, providing greater leverage and controlespecially effective in tight spaces or when working on stubborn, high-torque fasteners | Adjustable Wrenches for Stable Threading: Includes adjustable tap and die wrenches with secure locking and fine tension control, ensuring straight starts, stable engagement, and consistent threading under heavy load | Comprehensive Heavy-Duty Tool Set: 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 | Built for Automotive, Machinery & Demanding Repairs: Ideal for repairing stripped threads on large bolts, rods, and threaded holes, restoring external threads, and maintaining machinerytrusted by mechanics, fabricators, and serious DIY users