We are Wallace Metalwork the manufacturer of Mephisto caulking, plumbing and other speciatly tools. We forge Mephisto tools the same way they have been made for over 185 years. Our tools are 100% made in the U.S.A. We make: Mephisto Calking Irons for leaded pipe joints. Mephisto Packing Irons Mephisto Yarning Tools for Oakum Trimming Tools Forge Tongs Galvanizing Tongs Lifting tools more. . . We manufacture forged steel tools using open die forging machines and blacksmith methods as it has been done for centuries. These forging methods require skill but give us the flexibility to forge low production items without extensive tooling cost.