Fowler High Precision This elegant calibration machine is as much a work of art as it is a capable measuring instrument that can calibrate nearly every type of gage that would be brought to a cal lab! Rugged and precise, the Trimos Lab Concept is capable of calibrating: Plain Rings Solid Thread Rings Plugs Thread Plugs Pins Calipers Micrometers Depth Gages Snap Gages Dial indicators Test Indicators Splines Tapered Gages and many more!