Drills science and technology of advanced operations by Astakhov, Viktor P.

Available for University of the Philippines Diliman College of Engineering via CRCnetBASE. Click here to access
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Precision machining technology

Drilling tools and programme management by Hartley, John S.

Tunnel boring machine performance and ground properties report of the initial 1 1/2 km of the North Wear Drive, Kielder Aqueduct by Morgan, J. M.