- Cylinder Square
- Thread Pitch Leaf Gages
- Thread Ring Gages
- Thread Plug Gages
- Radius Gages
- Feeler Gages
- Go-NoGo Gages
- Snap Gage
- Surface Finish Comparator
- See: Optical Comparator
- See: Gage Block Comparator
Thread Pitch Leaf Gages
![](http://toolnotes.com/wp-content/uploads/2019/06/ScrewPitchGage-1024x528.jpg)
Thread Ring Gages
Thread Plug Gages
Radius Gages
![](http://toolnotes.com/wp-content/uploads/2019/06/RadiusLeafGage-1024x540.jpg)
Feeler Gages
![](http://toolnotes.com/wp-content/uploads/2019/06/feelergage-1024x942.jpg)
Feeler gages are leaves of precisely made shim stock. These are used to evaluate the thickness of gaps between flat surfaces. (See: Feeler Gage Video)
Go-NoGo Gages
![](http://toolnotes.com/wp-content/uploads/2019/06/GoNoGo-1024x405.jpg)
Snap Gage
Snap gages can be set to limit dimensions.
![](http://toolnotes.com/wp-content/uploads/2019/06/2Snap-Gage-1024x801.jpg)
Surface Finish Comparator
![](http://toolnotes.com/wp-content/uploads/2019/06/SurfaceFinishComparator-1024x627.jpg)
See: Optical Comparator
See: Gage Block Comparator
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