Eccentric sander series bosch gex power 400 watt disc diameter 150 mm weight 24 kg dust extraction power supply mains operation speed control idle speed max 12 000 rpm min idle speed 5 000 rpm max leerlaufschwingzahl 24 000 in umin min leerlaufschwingzahl 11 000 umin length of cable 2 m function grinding features vibration damping soft handle operating voltage 230 v tool holder velcro fastening schwingkreis 4 in mm noise level 82 db