Conical bit rotation as a function of selected cutting parameters
By: by Carl F. Wingquist ... [et al.].
Contributors: Wingquist, Carl F.
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;; 8983; Report of investigations (United States. Bureau of Mines) ;; 8983.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1985
Place of publication: [Pittsburgh, Pa.]
Language: eng
Number of pages: 18
Subjects: Bits (Drilling and boring) -- Testing.; Coal mining machinery -- Testing.
Notes: Bibliography: p. 13.