6 Ton Hydraulic Jewelers Hand Stamp Impact Press Marking Gold Silver Ingot Bars Bullion Professional Jeweler's 6 Ton Hydraulic Impact Hand Stamp Press Ideal for Marking Metals With Steel Hand Stamps Works With Gold, Copper, Silver, Wood, Leather, Soft Metals Great for Jewelers Looking to Stamp Pendants and Charms Delivers More Pressure Than the "Hammer-Strike" Method For Cleaner, More Precise Markings