KNIPEX Universal Mall. Cast Iron clamps are designed for durability and versatility. Made from high-quality cast iron, these clamps provide a strong and stable grip for various applications. They are ideal for both woodworking and metalworking, ensuring materials are held securely in place. The robust construction allows them to withstand heavy loads, making them perfect for demanding tasks. Their universal design makes them a valuable tool in any workshop, enhancing productivity and precision in your projects.