... :0-880/1,990/3,960r/min Diamond Core DrillSpecification:Drill Capacity:80MM Rated voltage:110V/230V Rated Input power:1 ... ,500W Rated frequency:50/60Hz No-load speed: 0-800/1,990/3,960r/min3 speedsPackage:Packed by BMCSize: 48 ... introduction :We manufacture power tools such as angle grinder,electric drill,impact dirll,polisher,jig saw,electric planer,circular saw,trimmer ...