Triblet Mandrel 30.5cm Oval

Product Details The triblet has a working length of 220mm (8.5″), with a total length of 305mm (12″) including handle. It has a diameter of 10×12 mm at the thinnest point of the triblet, and a diameter of 21×17 mm at the widest point. Used for forming or re-shaping metal. Making small oval bezels and collets/settings. They can be used to form a ring or an oval bezel to a specific size, to re-size an existing ring, or to correct the shape of a misshapen ring. This solid triblet is made from hardened steel.