... capacity in the world,No.1 Down-the-hole with DTH hammer drill rig manufacturer In China, ... , more convenient. Technical SpecificationsHole rangeRecommended DTH hammers and hole rangeHD45S, 105-140mm,4.13"- 5.51"Hydraulic ... tube handling system for normal hole depth,with 3 m (9.84’) tubesØ ... 76 mm 25 m 82'Single pass drilling, max hole depthØ 76 mm 3 m 9.84'CarrierTramming ...