The DeWalt DC668KA is an 18V Heavy-Duty Light Gauge Steel Framing Screwdriver. The DeWalt screwdriver is designed for a variety of steel stud framing applications. The registered Versa-Clutch torque adjustment dial allows to set the tool to a specific torque and prevents the stripping of fasteners. The heavy-duty screwdriver is also equipped with dual speeds running either 0-900 RPM or 0-2700 RPM which allows optimal performance using variety of fasteners. It uses a 1/4 inch hex drive which accommodates all fastening accessories including screw driving bits and nut runners.