Bosch Professional 1/2 inch impact wrenches. The Bosch Professional compressed air impact wrenches have a high-alloy pin impact mechanism for quick torque construction and a long service life. The cold-insulating, rubberised handle provides ideal comfort. The excellently balanced impact mechanism ensures the lowest vibrations. New pipe noise reduction systems provide improved noise attenuation. The torque adjustment takes place in three stages. The maximum torque can also be achieved in anti-clockwise rotation. Technical details: idle speed 7. 000 min-1 max. Torque 310 Nm max. Screw diameter: M18, weight: 2.3 kg