A mandrel bender is a specialized machine used to bend metal tubes and pipes without causing deformation. It employs a support structure, known as a mandrel, which is inserted into the tube to maintain its shape during the bending process. This technique is essential for creating smooth, precise bends in materials like steel or aluminum. The mandrel bender is commonly used in various industries, including automotive and aerospace, where strong, lightweight components are necessary. By ensuring that the inner diameter of the tube remains intact, the mandrel bender helps produce high-quality parts that meet strict engineering standards.