Quest carry out core drilling worldwide for many different target minerals, including gold, base and other metals, coal and lignite, industrial minerals and diamonds.  We offer conventional and wireline techniques, ranging from a core diameter of NQ up to 12 inches for bulk samples and geotechnical applications.  We carry out borehole surveys, core orientation and directional drilling.  Quest have designed bits specifically to improve recovery in soft and friable formations with great success.  We are experienced in using a variety of fluids and media to maximize recovery and increase productivity.