Thor Hammer 2830g Copper Hammer #4 (6-1/4lb) 50mm Face Wood Handle Th316Malleable Iron head fitted with cylindrical faces of Copper. The Malleable Iron head and the Copper faces combine to provide the weight for the blow and the Copper faces prevent damage to expensive machined sub components and assemblies. Ideal where a heavy blow is required combined with a relatively small striking area. Faces are designed to wear and can be replaced. Used as a general purpose soft faced hammer in automotive and general engineering