to be a bit more precise
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送交者: asimpleday 于 2014-03-24, 19:04:48:
回答: Broken drill bit, sometime does happen. 由 asimpleday 于 2014-03-24, 18:57:07:
It happens sometimes and okay if it is not able to be taken out easily.Otherwise, risk is more than benefit unless it is loose and in the joint.
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