The Hilti DX 351 Powder Actuated Fastening System is designed to be used for fastening into concrete, steel or block. The system allows mobility without any cords. The specially designed baseplate on the DX 351 makes it ideal when driving fasteners in narrow, almost inaccessible places such as strut channels or junction boxes that are being secured to concrete slabs or steel. Compact and lightweight, the DX 351 also provides a quick way to secure low voltage bunched cable, whether on walls or ceilings.Hilti Corp.