英语词汇“rose bit”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	rose bit
释义	rose bit rose bit [′rōz ‚bit] (design engineering) A hardened steel or alloy noncore bit with a serrated face to cut or mill out bits, casing, or other metal objects lost in the hole. rose bit A bit used to countersink holes in wood.
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