For sale is a Sheet Metal Lifting Clamp. As you can see, it is huge. See a can of WD-40 shown for comparison, this is a big regular size can. It s equipped with a big D-Ring shackle. It is clear to me that this clamp can lift huge sheets of thick metal, weighing many tons. I cannot be responsible for your application. You must get a safety engineer approve any applications where life or property can be endangered.