A cut-off machine is a machine tool used for cutting workpieces in metalworking. Automatic cut-off machines are specially designed for high speed and accuracy in cutting workpieces and can also be used for large quantities. Automatic cut-off machines use special tools called cut-off steels or cut-off tools. These tools have a cutting edge that plunges into the workpiece and separates it in a fast, precise cut. Automatic parting-off machines can also be equipped with multiple spindles to process multiple workpieces simultaneously, further increasing productivity. Automatic parting-off machines are typically used in the automotive, aerospace, machine building and other industries where high precision and high volumes are required. They can also be used in combination with other machine tools such as lathes, milling machines and drilling machines to machine complex parts.