| 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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