If you're threading holes by hand or with a machine, this MaxTool 3-piece tap set is a total workhorse. It includes taper, plug, and bottom chamfer taps – all made from high-speed steel (M2) for durability and long life. The size is 5/8-18 TPI, perfect for unified coarse (UNC) or fine (UNF) threads. Straight flutes mean you can use these in through-holes or blind holes, and the square driver shank works with hand tools or power drivers. No coating means they're versatile across a bunch of materials – steel, aluminum, brass, you name it. MaxTool is a trusted name in cutting tools, serving industries from automotive to aerospace, so you know this isn't some flimsy hardware store tap. Whether you're a machinist, mechanic, or serious DIYer, having the right tap on hand saves time and frustration. This set is all about consistent quality and reliable performance. Keep your projects moving smoothly and your threads clean and precise. Tool up with MaxTool – because good tools just make everything easier.