ALL-IN-ONE TAP & DIE SET : This 86-piece internal and external threading tool kit includes both coarse and fine taps and dies in the most commonly needed standard and metric sizes, ranging from #4 (14/125) to 5/8 inch and from M3 to M16. USER-FRIENDLY DESIGN : Precision-engineered to meet professional standards, this tap and die set features tap ends measuring 1/5 to 2/5 inch long for easy use with the included standard and metric wrenches. PREMIUM DURABILITY : Made of high-carbon chromium bearing steel with a titanium plating for added strength, this threading tool set is built for long-lasting durability, allowing homeowners, craftsmen, and mechanics to handle any task with confidence. ADDITIONAL TOOLS : The set includes 78 taps and dies along with adjustable and T-handle wrenches, a 1/8 flathead screwdriver, and thread pitch gauges, enabling you to carve precise threading through materials like wood, copper, aluminum, iron, steel, and more. BLOW-MOLDED CASE : A sturdy metal storage case keeps the SAE and metric taps and dies organized and portable, making it easy to take them wherever they’re needed.