†(a) a mandrel used for cutting screws (obsolete rare); (b) a mandrel with a threaded socket at one end for the attachment of tools.
| 单词 | θ212350 |
| 释义 | society > occupation and work > equipment > machine tool > other specific machine tools > [noun] > machine for cutting screw-threads > part holding tool (1) screw-mandrel1680 †(a) a mandrel used for cutting screws (obsolete rare); (b) a mandrel with a threaded socket at one end for the attachment of tools. |
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