Tommy bar

Noun

Definitions

1.NounA cylindrical iron or steel bar used as a lever.

"A set of two tommy bars is the standard tooling for the spindle nose threads of some minilathes and minimills."

2.NounA short bar put through the hole in a socket spanner or box spanner to provide leverage.

3.NounA bar used to loosen or tighten some types of chucks and tool holders on machine tools such as lathes or milling machines.

"A set of two tommy bars is the standard tooling for the spindle nose threads of some minilathes and minimills."

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