单词 | breast drill |
例句 | For drilling small holes in metal, the breast drill shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z A valve grinding tool patterned largely after a breast drill is shown at Fig. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z To break the seal, a hollow reamer or facing tool, fitted into a drill press or breast drill, is slipped over the post. The Automobile Storage Battery Its Care And Repair For this the Scotch or ratchet drill, if the job is heavy, is employed, and if light, the breast drill. Scientific American, Volume 17, No. 26 December 28, 1867 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. The placing and working of the former consumes considerable time, and the labor of drilling with the breast drill is excessive and exhausting. Scientific American, Volume 17, No. 26 December 28, 1867 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. |
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