单词 | pod-bit |
释义 | > as lemmaspod-bit ΘΚΠ society > occupation and work > equipment > piercing or boring tools > [noun] > drill > types of bit rose bit1842 pod-bit1875 twist-drill1875 twisted bit1875 chamfering-bita1877 twisted drill1884 twist-bit1901 Forstner bit1902 1875 E. H. Knight Amer. Mech. Dict. III. 1757/2 Pod-bit, a boring-tool adapted to be used in a brace. It has a semicylindrical form, a hollow barrel, and at its end is a cutting lip which projects in advance of the barrel. < as lemmas |
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