Magnetic chucks (also called magnetic clamping plates or magnetic clamping tables) are tools used in metalworking to securely and precisely fix workpieces. They consist of a plate with embedded magnets that generate a strong magnetic field to hold the workpiece in place. Both round and rectangular magnetic chucks are available, depending on the requirements of the specific application. Magnetic chucks are widely used in the machine tool industry, especially in milling machines and lathes. By using magnetic chucks, the workpiece can be fixed quickly and easily without having to manually adjust the fixture. This saves time and increases efficiency in metalworking. It should be noted, however, that magnetic chucks are only effective on workpieces made of ferromagnetic materials such as steel and iron. Other materials such as aluminum or copper cannot be held by magnetic chucks. In addition, magnetic chucks must be carefully maintained to ensure that the magnets function properly and the workpiece is held securely.