Pistol models are simple and practical: the air motor is directly connected to the accessory working on the screw (bit, socket). By simply fitting a keyed chuck these powerful screwdrivers can easily be transformed into powerful drills and tappers. Ideal for tightening screws with different diameters on different joints. Angle models and with flat angle head are indispensable when working in areas of limited space or restricted. AN models with worm drive due to their low speed and high torque values, makes them suitable for use in a wide variety of different applications, such as, for example moving (slides, carriages, on packaging machines for tightening straps, for machining, etc.). The tightening torque for all models can be adjusted modifying incoming air pressure