... 4") Angle Grinder--R4030 NEW MODEL 1)Disc Diameter:100mm 2)No Load Speed:11,000r/min 3)Rated Input Power:720W Angle Grinder ... a spanerCOMPANY INTRODUCTION:We manufacture power tools of angle grinder,electric drill,impact drill,polisher,jig saw,electric planer ... is very good .3,Our market is wide.4,Our purpose is "quality first,customer first"5 ... ,OEM service is available. R4030--100mm (4") Angle grinder