Bosch SG45M-50 7.0 amp Drywall Screw Gun with Twist Lock Cord Compact design increased comfort and control to drive screws all day Ergonomic design contoured grip is designed to maximize comfort and minimize fatigue Posi-Lok nose piece design retains depth setting when removed and eliminates time consuming depth readjustments 4,500 RPM provides the optimum speed for drywall installation and metal stud construction 101 in. lbs. of torque in the best torque to weight ratio in its class