engineering drill,diamond core drill,drill machine,core drill,for granite and concrete drilling,professional quality,last long. engineering drill,diamond core drill,drill machine,core drill,for granite and concrete drilling,professional quality,last long.Specification:Item No.:Z1Z-CF-160Max drilling diameter:160mmRated input voltage:110/220vRated input frequency:50/60HzRated input power:2000wNo- ...