The DEMO/Rescue blade is an extremely aggressive blade. The specially designed tungsten carbide tips allow the blade to quickly slice through most types of metal, wood or fiberglass. The DEMO/Rescue blade is an ideal choice for police and fire department rescue operations. Used by utility crews to eliminate roots, this extremely aggressive blade will cut most materials the trained professional is likely to encounter: wood, sheet metal, plastic or asphalt. The tungsten carbide chunks will tear through material quicker than almost any alternative. Not for use on concrete. May be run wet or dry.