A general name for tapered boring-bits, or tools for enlarging or smoothing holes, generally of polygonal form with several cutting edges…
| 单词 | θ212277 |
| 释义 | society > occupation and work > equipment > piercing or boring tools > [noun] > tools for enlarging holes (9) broach1753 A general name for tapered boring-bits, or tools for enlarging or smoothing holes, generally of polygonal form with several cutting edges… reamer1765 A tool for enlarging or finishing a drilled hole. rimer?1815 A tool for enlarging holes; = reamer, n. 1. Also: a tool for clearing a hole, tube, etc., of obstructions. rimmer1825 A tool for enlarging holes; = reamer, n. 1. rinder1829 A tool for enlarging holes; = reamer, n. 1. Cf. rimer, n. machine reamer1905 Subcategories:— countersink (3) |
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