1800 watt wet stone grinder with plug for isolating transformer 130 mm vr full wave electronic control tachogenerator constant speed control soft start overload protection and speed selection central water supply through gear shaft for wet grinding of granite and marble quick fit brass coupling for 12 water hose contour plug can be connected only to an isolating transformer for safety reasons operation is permitted only connected to the flex tt 2000 isolating transformer tool fixture m 14this ma