Hallmark Stamp .750 For Ring Stamping Machine & Jewelry Marking Pliers Smith Torch The cross section is flat

The cross section is flat on one side with a radius (not a half-circle) on the other

Excess wax scrapes off cleanly for a smooth surface

Work by professional jewelry designers included throughout for real-world inspiration

Easy operation: Pushbutton calibration

Loupe chain with detachable clips

Hallmark Stamp .750 For Ring Stamping Machine & Jewelry Marking Pliers Smith Torch The cross section is flatThe . 750 Hallmark Stamp is designed for use with both ring stamping machines and jewelry marking pliers, securing firmly in place via a set screw for consistent, repeatable impressions. The stamp face is slightly radiused to conform to the interior curve of ring shanks, ensuring clean, legible marks on rounded surfaces. Impression height is 0. 80 mm unless otherwise noted. In European hallmarking standards, . 750 denotes 18k gold the designation