DeWalt DCN890P2 Battery Concrete/Steel Nailer & Supplies. The DeWalt DCN890P2 tool is a cordless battery operated nail gun to fasten to concrete and steel. This system offers several advantages over powder actuated and gas operated concrete nailers. The DCN890P2 works without powder charges or fuel cells for clean efficient operation. In addition to standard pin fastening, you can add the Stick E probe and shoot a variety of assemblies including ceiling clips, EMT straps and clips, lathing discs and more.