Eccentric sander series festool rotex power 500 watt disc diameter 125 mm weight 19 kg power supply mains operation speed control idle speed max 6 000 rpm function grinding features soft start soft handle constant electronics operating voltage 230 v tool holder velcro fastening included in delivery systainer allen key variable no load speed 300 600 rpm orbital stroke rate 3000 6000 rpm in a systainer oscillating circuit diameter 3 6 mm