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==English==
[[Image:Tommy bar.png|thumb|200px|T-handle wrench with integral tommy bar as the handle; the grooves in the bar serve the ball [[detent]] to keep the bar in place. A socket and extension are attached.]]
{{wikipedia|Wrench}}▼
[[Image:Tommy_bar.png|thumb|200px|Tommy bar with socket and extension]]
 
===Noun===
{{en-noun}}
 
# {{lb|en|engineering|machining}} ShortA bar put through the shaft of acylindrical [[socket spanneriron]] or [[box spannersteel]] tobar provideused extraas a [[lever]]; leverage.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 [[chuck]]s and tool holders on [[machine tool]]s such as [[lathe]]s or [[milling machine]]s.
##: {{ux|en|A set of two tommy bars is the standard tooling for the spindle nose threads of some minilathes and minimills.}}
 
====Translations====
[[Category:Tools]]
{{trans-top|short bar}}
* Dutch: {{t+|nl|kruk|m}}
* Greek: {{t|el|αξονίσκος|m}}
{{trans-bottom}}
 
====See also====
[[ta:tommy bar]]
* {{sense|tool containing an integral tommy bar}} {{w|tap wrench|T-handle}}
* {{sense|tool involving an analogous male cylindrical portion}} {{w|wrench#pin spanner|pin spanner}}
* {{sense|hooked bars, differentiated from tommy bars}} {{l|en|crowbar}}, {{l|en|prybar}}, {{l|en|jimmy}}
 
====Further reading====
▲* {{wikipediapedia|Wrench}}
 
{{C|en|Tools}}
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