Thread Check Inc. offers plain cylindrical ring gages for Go/No Go gaging and as masters. Plain cylindrical ring gages are ideal for inspecting outside diameters of manufactured parts. With Go/No Go ring gages, an inspector can quickly pass/fail parts without taking time consuming readings from a measuring instrument. Plain cylindrical ring gages are also ideal for use as masters for setting dial bore gages, air gages, and internal micrometers. By using the same size master ring gage, lead error on measurements can be eliminated. Cylindrical ring gages are available in class XX thru class ZZ gagemaker tolerances. Plain cylindrical ring gages are available in high quality C2 tungsten carbide for longer gage life. Feel free to contact our staff with any concerns you may have about our cylindrical ring gages.