Hallmark Stamp Curved - Sterling Silver 925 Oval Scales With Japanese engineering and professional

With Japanese engineering and professional accuracy

Graphite mixer for molten metals

Optimized for mini lathe machining

Each cone has small projections on one side that lock into the base of the mold frame

stone setting

Hallmark Stamp Curved - Sterling Silver 925 Oval Scales With Japanese engineering and professionalThe Stamp Curved 925 Oval is a precision metal marking tool designed for stamping the 925 sterling silver hallmark onto jewelry pieces. Featuring a curved profile, this stamp is ideal for use on rings, bangles, and other rounded or contoured surfaces. The oval 925 mark produces a clean, professional imprint, making it perfect for silversmiths, jewelry makers, and workshops requiring clear material identification. Durable and reliable, this stamp is an