Top hammer drilling tools Product catalogue - Sandvik Group
The quality of the holes drilled by a Sandvik DP1100 top-hammer rig, with an HL1560T rock drill, was found to be significantly better than those drilled by a competitor’s high-pressure, high-volume down-the-hole drill. Utilizing an 87 mm diameter, 4.3 m GT60 pilot tube, GT60 4.3 m extension rods, 115 mm ballistic Retrac bits and
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