Deep Hole CHD Wireline Core Rod - Matrix DrillingMatrix ...
Matrix CHD Drill Rods feature a double buttress thread which is unique in that it can deliver both exceptional strength for depth and the durability perform on larger drill rigs used in deep hole coring operations. CHD strings are commonly known as CHD 76 – CHD 101 – CHD 134 for their respective hole diameters. The CHD drill rod is ...
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