Ring mandrel is the perfect tool for ensuring accurate sizes while forming rings. The lightweight design and textured grip make holding the mandrel comfortable, though there is an opening at the bottom to allow for screwing it into place if you prefer. Size guides are etched into the side of the mandrel so you can ensure consitency.
Ring sizes: 1-33
Size 1 diameter: 12,4mm
Size 33 diameter: 24mm
Material: aluminium