A taper is a gradual and systematic change in the dimensions of an object, typically characterized by a reduction in width or diameter over a specified length. Tapers are commonly used in engineering and manufacturing to achieve various functions, such as secure fittings, alignment, or reducing stress concentrations. Tapers are frequently employed in tooling and machining applications, such as Morse tapers used in drill presses and lathe tailstocks, or in the design of keys and keyways to secure components together. They play a crucial role in ensuring the accurate and reliable performance of numerous mechanical systems.