NON-SPARKING EXTREME POWER DRIVE® IMPAX DEAD BLOW hammers are engineered to perform better than rubber or plastic face hammers. Using Nupla’s patented Smart Hammer® technology, the non-ferrous shot-loaded composite interior cavities of these Dead Blow hammers are fully encased in a tough polymer outer jacket. When the hammer is struck, the free flowing inner shot concentrates striking power and increases driving force creating a dead blow effect. No rebound upon impact transfers full energy of the blow to the object being struck. These hammers have 100% cast polyurethane ends which are designed to withstand severe striking applications and are surface protective. Also available with a brass face, which is not surface-protective. Lifetime® warranted Nuplaglas® handles are constructed with thousands of fiberglass strands and a unique resin to make them super strong, all-weather, chemical and insect-resistant. Ergonomic non-slip grips for slippery conditions. This versatile hammer can be used in assembly applications involving hard surface composites and other hard materials or alloys.