These bent square shank 10K hallmark stamps are made of precision cut heat-treated tool steel and are used for marking gold alloys that are no less than 0.375% pure gold by weight. Bent stamps can be used for marking the inside of rings.  Also called gooseneck stamps, these 18K stamps are made in the USA and Germany, and make sunken impressions on precious metals.  Measurement refers to the height of the impression, not the width.

Choose from 3 sizes:

• 155.251  1.00mm
• 155.252  0.80mm
• 155.253  0.60mm