The GX 120 is ideal for repetitive drywall fastening applications. This gas-actuated tool with electronic controls requires no power cable, making it fully mobile. A single gas cartridge provides enough power to drive 750 nails into concrete, steel, or sheet metal. The GX 120 has been designed for maximum safety and perfect handling in all installation situations. A proven safety system reliably prevents inadvertent firing or misuse. The keyless adjustable nose piece facilitates reaching otherwise inaccessible corners with this rugged, well-balanced tool, and its built-in retaining hook makes it easy to attach it to the user’s belt.