Adjustable power 5. 10. 15. 20. 25. 30. 35. 40. 45. 50 and 100%. Composite motor housing. 1/2" square drive with friction ring. 1/4" quick coupling thread. Two-hammer impact mechanism. 1200 blows/ min. Idle speed 7700 rpm. Air consumption at idle speed 156 l/min. Max power when tightening 1080 Nm. when loosening 1300 Nm. Min hose diameter 10 mm. Weight 1.85 kg. The tool is suitable for quick coupling 6158105880.