Hammers come in a variety of styles such as ball pein hammers, brass hammers, claw hammers, copper hammers, cross pein hammers, dead blow hammers, framers and mallets, masonry hammers, sledge hammers and soft alloy head hammers. Hammers are used to deliver a blow to an object to break it apart or insert it into another object. Look for a hammer that is well balanced, of durable materials and has the proper weight and construction for your use.