The Bosch GSB18V-535C Hammer Drill/Driver and Bosch GSR18V-535C Drill/Driver combine advanced user control with a compact, powerful cordless tool. The tools feature Bluetooth connectivity (which connects to an optional connectivity tool module) that links the tool to the free Bosch Toolbox App, which is available at the Apple App Store or the Google Play Store. The app works with a mobile device to provide enhanced tool control and detailed tool usage feedback, including battery charge status. The hammer drill/driver and drill/driver offer Bosch-exclusive Kickback Control, an integrated acceleration sensor that limits tool rotation by detecting sudden movement and shutting down … Read more