NASA NTRS · 19790000268
Low-cost boring mill
Abstract
Portable unit and special fixture serve as boring mill. Machine, fabricated primarily from scrap metal, was designed and set up in about 12 working days. It has reduced setup and boring time by 66 percent as compared with existing boring miles, thereby making latter available for other jobs. Unit can be operated by one man.
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Hibdon, R. A.. 1979-12-01. Low-cost boring mill. https://ntrs.nasa.gov/citations/19790000268
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