A swivel knife looks basically as a miniature crutch with a sharp edge at the end. It is an old leathercraft tool that many still use today. While using your index finger to apply pressure, your thumb and middle finger can swivel the knife edge smoothly in order to cut beautiful swirly patterns into leather and other soft materials. Bruce Cheaney is one of the many leatherworkers that cherish this old tool, and in this video he gives us a brief demonstration on how it can be used. Just watch and enjoy!