单词 | twisted drill |
释义 | > as lemmastwisted drill twisted drill n. = twist-drill n. at twist n.1 Compounds 2. 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 1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 94 For long holes of small diameter a twisted drill is desirable. < as lemmas |
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