Yes, you can buy a used tool, but it is important to consider its condition, weight, and material before making a purchase. A good-quality blacksmith is often made of cast iron or steel and should have a flat surface with minimal damage. It is also important to check the it's weight, as a heavier tool can provide better stability and a smoother working surface. However, it is always recommended to get a new one and enjoy all the advantages this hand tool comes with.