control knob machine tool detail |
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| navigate by keyword : 16x9 accuracy blur bolt brown closeup color control craft cutting detail dirty engineering exactness finger gauge gray grooved hand handle hold hole human idea industrial industry knob lathe lever machine machinery machining machinist macro manufacture measure measurement measuring mechanic mechanical metal metallic milling nonius nut occupation operator perfect precise precision processing production quality scale silver skill steel technical technology tool turner turning vernier wheel work worker working workman workplace workroom |
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| Close-up of dirty hand on the metal wheel with a vernier scale for accurate measurement. Idea of precise machining in production and mechanical engineering |
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