Estwing BIG BLUE Engineer's Hammer - 48 oz  Sledge with Forged Steel Construction & Shock Reduction Grip - E6-48E FORGED IN ONE PIECE  The most durable, longest lasting striking tools available #1 CHOICE OF GEOLOGISTS WORLDWIDE  The preferred choice of rock hounds, prospectors & contractors PATENTED SHOCK REDUCTION GRIP  Comfortable, durable & reduces impact vibration by 70% PATENTED NYLON END CAP  Ultra durable handle end for setting bricks and more MADE IN THE USA  Our tools are proudly crafted in Rockford, IL using the finest American steel