18K Straight Square Shank Hallmark Stamp 1/25" (1.00mm) Impression Height Scales & Testing 10 mm Blade Type Single-ended

10 mm Blade Type Single-ended

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18K Straight Square Shank Hallmark Stamp 1/25" (1.00mm) Impression Height Scales & Testing 10 mm Blade Type Single-endedThis straight square shank 18K hallmark stamp is precision cut from heat treated tool steel, designed for marking gold alloys containing no less than 75% pure gold by weight. The straight shank configuration is ideal for stamping flat surfaces, leaving a clean, sunken impression with each strike. The 1 25" (1. 00mm) measurement refers to the height of the impression, not the width. If you need to mark the inside of rings or curved interior surfaces, a