Trillion Large Bezel Mandrel-10mm x 10mm to 25mm x 25mm OMO-Made in Italy Prop 65 - Acrylonitrile-Beryllium-Carbon Black-Nickel-Lead-Butadiene 1 bag of approximately 150

1 bag of approximately 150 Castaldo Mold Lock Formers

consistent forming

Used by professional jewelers worldwide

1mm | Magnification 7X–45X

block available separately as 125

Trillion Large Bezel Mandrel-10mm x 10mm to 25mm x 25mm OMO-Made in Italy Prop 65 - Acrylonitrile-Beryllium-Carbon Black-Nickel-Lead-Butadiene 1 bag of approximately 150The Trillion Large Bezel Mandrel from OMO is a premium quality forming tool designed for jewelers and metalsmiths who work with trillion cut stones. This Italian made mandrel features a triangular swelling (trillion) profile that accurately reflects the true shape and proportions of trillion stones, making it an essential tool for crafting precisely fitted bezels. The edges are slightly rounded rather than sharp, ensuring clean, professional results