Metabo - The Metabo Cordless Impact Wrench SSW 18 LTX 300 BL in action! The Automatic Power Shift (APS) supports working with self-tapping screws: automatic torque reduction after drilling to prevent overtightening. #
Amazon.com: Metabo Gb18Ltxblq18V Tapping Tool Brushless Cordless Bare Tool : Tools & Home Improvement