单词 | cross-mouth chisel |
释义 | > as lemmascross-mouth chisel cross-mouth chisel n. a cylindrical boring chisel with a diametrical blade; also cross-mouthed chisel. ΘΠ society > occupation and work > equipment > cutting tool > chisel > [noun] > boring chisel boring-bit1844 bore-bit1870 cross-mouth chisel1874 straight bit1883 1874 E. H. Knight Amer. Mech. Dict. I. 650/1 Cross-mouth chisel, a boring-chisel of a cylindrical form with a diametrical blade. 1896 Daily News 26 Sept. 3/5 Cross-mouthed chisels of hardest tool steel. < as lemmas |
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