1400 in-lbs of torque 1/2 inch all-metal chuck with carbide teeth for maximum durability, grip and bit retention Auto-Stop Feature to Protect from overroation in a bindup for enhanced safety, equipped with a dedicated autostop light on foot of tool to indicate a protection event. POWERSTATEâ„¢ Brushless Motor delivers the power to complete the widest range of applications of any hammer drill driver.