... air filtrate diesel motor, easy starting and maintenance, reliable capability. Drilling Rigs CommodityCrawler Hydraulic Rock DrillSpecificationsDiesel motorArt no.PD-Y58Quantitycontact usPackingNonPaymentT/TDelivery10 ... on complex road, adopt taper drill pipe connect, double use life. High integration, low cost.Drilling rigiditvF=6-20Drilling diameter32-45 mmWorking ...