Jinke JK830 Multi Purpose Crawler Drilling Rig Contractors who buy the JK830 usually start with one job in mind, then find it does three. The mast angles and the rotation speed range are wide enough for blast holes, foundation piers, rock anchors and slope stabilization holes, which is why we sell it as a multi purpose rig. Main Features Mast tilts from vertical to horizontal for anchor and tie-back holes Wide rotation speed range suits DTH bits and auger tools Crawler tracks
