A short bar used to turn a box spanner.
More example sentences
- The saws in need only a pin or ‘tommy bar’ to tighten the grips, as the screws have a round head with a hole in the middle.
- There are a couple of tricks that others showed me when working with the tommy bars at a class I took.
- Just because there are two tommy bars does not mean you have to hold one in each hand.