Steel Bench Blocks With One Radiused Edge Made In Italy Castaldo Mandrels are 100 mm (4")

Mandrels are 100 mm (4") long for efficient coil winding

Split ring included for ready-to-use convenience

sold exclusively through Otto Frei

Each punch has a precisely corresponding depression in the square die block

Steel Bench Blocks With One Radiused Edge Made In Italy Castaldo Mandrels are 100 mm (4")These Italian made steel bench blocks have been a trusted staple at the jeweler's bench for over 40 years. Crafted from hardened, tempered steel that has been precision ground flat, each block features one rounded (radiused) edge ideal for forming, stamping, and general benchwork. The combination of a flat working surface and a smooth radiused edge gives jewelers versatile support for a wide range of metalsmithing tasks. Available in five sizes, from