このページは国際安全衛生センターの2008/03/31以前のページです。
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Drilling
work |
In order to correct
the misalignment, a worker is widening the boltholes for securing an
undercover, using a drill of the same diameter. |
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Various Points of Hazard |
1.
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Widening the
boltholes with a drilling machine of the same diameter may likely cause
the drill to break and send the broken drill flying off. |
2.
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The work is
not secured completely. It may be sent flying off.
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