Estwing's Lineman's Hammer is solid forged from one piece of steel giving them unsurpassed balance and temper. It has a bonded and moulded on Shock Reduction Grip that reduces shock up to 70% and will not come off. The heavy, double sided hammer used for hitting heavy objects such as spikes into utility poles. Popular for heavy engineering tasks and to drive heavy objects apart or together with great balance and shock absorption.