1.diamond core drill use for concrete, granite,rock 2.small noise 3.large power 4.long service life 5.high precision Diamond core drillModel:MTD110BMax. Drill diameter:110mmsmall,light,and easy control professional drilling big hole Specifications:1.Rated voltage: 110v,220v, 240v 2.Rated frequency:50-60Hz 3.Rated input power: 1500w 4.No-load speed:1200 r/min 5.Package Size: 59*29*50cm 6.Pcs/ ...