Signer, Merton I.Sethi, Munshi Lal2022-05-102022-05-101947https://hdl.handle.net/11124/13053Includes bibliographical references.masters thesesengCopyright of the original work is retained by the author.Bits (Drilling and boring)Rock-drillsRock mechanicsOil-shalesInvestigation into the relationship of drilling speed of rock drill with the diameter of the bit in oil shale, AnText