Hallmark Stamp .750 For Ring Stamping Machine & Jewelry Marking Pliers Smith Torch Quatro Gold Vaults

Quatro Gold Vaults

(60") bulk pack for production and resale use

this double barrel rotary tumbler works slowly and methodically through long production cycles

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

Loupe chain with detachable clips

Hallmark Stamp .750 For Ring Stamping Machine & Jewelry Marking Pliers Smith Torch Quatro Gold VaultsThe . 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