A folding knife blank is a piece of metal or other material that is pre-shaped and ready to be customized into a folding knife. These blanks are perfect for knife makers and DIY enthusiasts looking to create their own unique folding knives. They are available in a variety of materials and can be customized with handle materials such as wood, bone, and synthetic materials. Whether you're a seasoned pro or just starting out, a folding knife blank is a great way to create a custom, one-of-a-kind folding knife.