Need to cut or repair threads? This Burkit 5/8-16 UN Tap and Die Set has you covered! The tap is made from durable 6542 high-speed steel with a straight flute design for smooth chip removal—perfect for through holes or shallow blind holes in materials like copper, brass, steel, aluminum, and cast iron. The matching die is crafted from tough alloy tool steel to clean up or create external threads. Both are right-hand threaded with a 5/8-inch diameter and 16 TPI (threads per inch), meeting 2B/2A accuracy standards. They work great with tapping machines, bench drills, CNC gear, or even by hand (just remember to use some lubricant and reverse occasionally to clear chips!). Whether you're a pro machinist or a DIY enthusiast, this set is a reliable choice for thread repair and creation. The pack includes one tap and one die, ready to tackle your next metalworking project. Get precise, clean threads every time!