A Yato Metal Taps (Set of 29), YT-2977 also known as a tap and die set, is a collection of tools used for cutting threads into metal surfaces to create threads for screws, bolts, and other fasteners. Taps are used to cut internal threads (in a hole), while dies are used to cut external threads (on a rod or bolt). Tap and die sets come in various sizes and configurations to accommodate different thread sizes and pitches. Here are the key components and features of a taps set: Taps: Taps are cutting tools used to create internal threads in a hole. They come in various types, including taper taps, plug taps, and bottoming taps. Taper taps have a gradual taper and are used to start the threading process, plug taps have a shorter taper and are used to continue threading, and bottoming taps have a very short taper and are used to finish threads at the bottom of a blind hole. Dies: Dies are cutting tools used to create external threads on a rod or bolt. They come in various types, including round dies and hex dies. Round dies are used for threading round rods, while hex dies are used for threading hexagonal bolts and nuts. Tap Wrench: A tap wrench is a hand tool used to hold and turn taps when cutting internal threads. It typically has a T-shaped handle with a chuck or collet at one end to securely grip the tap. Die Stock: A die stock, also known as a die handle or die holder, is a hand tool used to hold and turn dies when cutting external threads. It consists of a handle with an adjustable clamp or collet to hold the die in place. Thread Gauge: Some tap and die sets include a thread gauge, which is a tool used to measure the pitch (distance between threads) and diameter of threads. The thread gauge helps ensure accurate threading and proper fit of fasteners. Case or Storage Box: Tap and die sets often come in a durable case or storage box to keep the tools organized and protected when not in use. The case may have designated compartments or slots for each tap, die, wrench, and other accessories. Material and Construction: Tap and die sets are typically made from high-quality materials such as high-speed steel (HSS) or carbon steel for durability and long-lasting performance. The cutting edges of taps and dies are hardened and precision-ground to ensure clean and accurate thread cutting. Variety of Sizes and Pitches: Tap and die sets come in various sizes and pitches to accommodate different thread sizes and requirements. Common thread sizes include metric, imperial (inch), and pipe threads, with a range of pitches to suit various applications. Overall, a taps set is an essential tool for machinists, mechanics, metalworkers, and DIY enthusiasts who need to create threads in metal surfaces for fastening and assembly purposes. By having a comprehensive set of taps, dies, wrenches, and accessories, users can tackle a wide range of threading tasks with precision and confidence.