Mandrel U Groove 10mm to 25 x 350mm

Made in Italy with High Grade Steel. This U-Groove Ring Mandrel is designed for forming, shaping, and sizing rings, bangles, and curved metal components while maintaining a smooth, consistent profile. The polished U-shaped groove supports rounded and half-round sections, helping to prevent flattening, distortion, or marking during fabrication and repair work. Manufactured from hardened, polished steel, this mandrel provides a durable working surface for hammering, forming, and refining jewellery pieces. The gradual taper from 10 mm to 25 mm and 350 mm overall length makes it ideal for creating and adjusting a wide range of ring and bangle sizes while preserving their original contours. An essential tool for jewelers working with rounded profiles and delicate finished pieces.