Check the listing for details. Vintage Blacksmith Cross Peen Rounding Hammer 2lbs.. Condition: Used. Listed at 27.50 USD. The Vintage Blacksmith Cross Peen Rounding Hammer is a collectible tool with a 2lb weight, perfect for blacksmithing enthusiasts. Its unique cross peen design allows for precise rounding and shaping of various materials, making it a valuable addition to any workshop or collection. The classic blacksmithing tool is both functional and decorative, reflecting the craftsmanship and heritage of traditional blacksmithing techniques.