... machine Scouring Machine MK-150FEATURE:(1)Variable speed control-6 positions(2)Ergonomic designed bow handle with ... 110V, 50/60HzInput power:1500WNumber of speed: 6 positionNo load speed:I:2500-4500(min)Certificate:GS, ... CE,EMC,ROHS,PAHSDiameter:140mmDisc Diameter:125/140mmBMC packing:Packing quantity:2PCS/CTNG.W/N.W ... 40" a new good quality concrete grinder (MK-150)