| 词条 | Thread restorer |
| 释义 |
A thread restorer (thread file) is a tool used to fix threads on nuts or bolts that have become damaged. One type of thread restorer is a thread restoring file. There are other types of thread restoring tools as well. References{{Unreferenced|date=August 2011}}{{Machine and metalworking tools}}{{Tool-stub}} 1 : Metalworking hand tools |
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