A lump hammer, is a small light weight sledgehammer. Its short handle and bold, often square shaped head, is most commonly used for demolition or driving large objects. Lump hammers are typically categorised by their weight, but there are other variables to consider when buying one. Handle materials vary and can be made from various types of wood, fibreglass, graphite and steel. Handles also often feature rubberised grips for additional grip assurance as all we aiding in shock absorption. Lump hammer heads are most commonly made of steel but for more specialist applications, non-sparking heads made from aluminium bronze can be found.