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牙医钻: C. U. 与空气噪声; 开始, 跑, 停止, 电机, 电动SQ无损品质 | 700:50下载 收藏其他(other) / 钻(drill) / 牙医(dentist)
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牙医钻: 开始, 跑, 发条, 两次, 电机, 电动SQ无损品质 | 401:11下载 收藏其他(other) / 钻(drill) / 牙医(dentist)
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1/2' hammer drill: [1](2s):quick rev of motor, construction;[2](2s):quick rev of motor, construction;[3](24s):drill hole into concrete, constructionSQ无损品质 | 300:35下载 收藏
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drill and tap press: [1](25s):drill one hole, construction;[2](26s):drill two holes, construction;[3](23s):tap one hole, constructionSQ无损品质 | 301:21下载 收藏
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wood drill press: bore one hole, [1](22s):slow speed, construction;[2](16s):med speed, construction;[3](14s):fast speed, construction;[4](22s):fast speed, constructionSQ无损品质 | 201:23下载 收藏
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1/2' electric: [1](4s):install bit, tighten with motor, construction;[2](5s):remove bit with chuck key, constructionSQ无损品质 | 100:14下载 收藏其他(other) / 钻(drill) / 手(hand)
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1/2' electric: [1](9s):drill one hole, construction;[2](23s):bore one hole, construction;[3](14s):drill several holes, constructionSQ无损品质00:52下载 收藏
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3/8' cordless: drill [1](5s):one hole, construction;[2](16s):one hole, construction;[3](16s):several holes, constructionSQ无损品质00:42下载 收藏其他(other) / 钻(drill) / 手(hand)
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3/4' hammer drill: [1](11s):rev and small hole into concrete, construction;[2](15s):drill small hole, sev. attempts, construction;[3](10s):drill hole into concrete, constructionSQ无损品质00:43下载 收藏
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1/2' 电动: 快速转速的电机, 建设[1](2s);[2](2s)SQ无损品质00:08下载 收藏其他(other) / 钻(drill) / 手(hand)