255mm drill machine,diamond core drill,drill machine,new model with A/C stand,industrial quality,for engineering project 255mm drill machine,diamond core drill,drill machine,new model with A/C stand,industrial quality,for engineering projectSpecification:Item No.:Z1Z-CF02-255AMax drilling diameter:255mmRated voltage:110v/220v/240vRated frequency:50/60HzRated input power:2450wNo-load speed:500/ ...