PRO GTB185-LI Depth stop screwdrivers | Efficient and powerful with 4,500 rpm for faster drywall screwing, Ergonomically built for less exertion and more comfortable grip, High runtime with 3X more screws per charge, thanks to PowerSAVE technology, No longer needed to remove depth gauge during reversing, thanks to the new reversible depth stop, Weight of 0.95kg, thanks to Bosch in-line drive design