BOSCH GDS18V-221N 18V EC Brushless 1/2 in. Impact Wrench with Friction Ring and Thru-Hole (Bare Tool) - Amazon.com
GDS18V-330CB25 | 18V Brushless Connected-Ready 1/2 In. Mid-Torque Impact Wrench Kit with Friction Ring and Thru-Hole and (2) CORE18V® 4 Ah Advanced Power Batteries | Bosch Power Tools