INTRODUCTION. Satisfactory results with Diamond Core Drilling ...
Core Barrels and Diamond Core Bits are expensive and should be treated with care. Improper use and treatment will result in poor core recovery, slow drilling rate, damaged bits and barrels, excessive round ... is not ground up by contact with a rotating part. ... stones are cut out, graded and re-set adding new stones to bring.
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northeastgeotech's website is northeastgeotech.com