What is the meaning of Tommy_bar?
A cylindrical iron or steel bar used as a lever; thus:
- A short bar put through the hole in a socket spanner or box spanner to provide leverage.
- A bar used to loosen or tighten some types of chucks and tool holders on machine tools such as lathes or milling machines.
A short bar put through the hole in a socket spanner or box spanner to provide leverage.
A bar used to loosen or tighten some types of chucks and tool holders on machine tools such as lathes or milling machines.
Source: wiktionary.org
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