A Taper Adapter MT3 - JT4 is a precision tool used to connect machines with different taper sizes, specifically Morse Taper (MT3) and Jacobs Taper (JT4). Specifications: MT3 (Morse Taper 3): A standard taper used in toolholders, drills, and other machine tools for a secure and precise fit JT4 (Jacobs Taper 4): A type of taper commonly used for chuck mounting and drill bit installations Material: Typically made from high-strength steel for durability and precision Function: The adapter allows the use of tools or accessories designed for Jacobs Taper 4 (JT4) with a machine that uses Morse Taper 3 (MT3) sockets Applications: This adapter is useful in machining, tool setups, and lathe operations, enabling the use of a broader range of tools and chucks on machines with different taper systems. Ideal for workshops and industrial settings requiring quick tool changes and precise, secure fittings.