4 times the screwdriving speed thanks to the turbo function purely mechanical – without battery Activate and deactivate the turbo function by a simple push of a button Turbo function especially for smooth couplings Can be used without the turbo function like a normal screwdriver for couplings with steadily increasing torque, e.g. for screw connections in wood Robust, maintenance-free gear made of steel, Weight: 0.51 pounds, Manufacturer: Wera