diamond core drill,drill machine,core drill machine,engineering drill machine,industrial quality,in competitive price,last long diamond core drill,drill machine,core drill machine,engineering drill machine,industrial quality,in competitive price,last longSpecification:Item No.:Z1Z-CF02-255AMax drilling diameter:255mmRated voltage:110v/220v/240vRated frequency:50/60HzRated input power:2450wNo-load ...