1/2-13 Thread, High Speed Tool Steel, Class 3B, Screw Thread Insert Go/No Go Gage MPN:91108-000

The 1/2-13 thread pitch class 3B screw thread insert go/no-go gage is constructed of high speed tool steel with 40 flank angles that allow for the measurement of 58 active thread range providing accurate identification of male thread form irregularities, and can be used to verify dimensional conformance to U.S standard, ISO and military specifications. Its go/no-go system consists of two indenters, one with an oversized radius for threads that exceed specification limits while the other is of a standard diameter for those within range; thus permitting quality control operators or machinists quickly determine acceptability without detailed measurement tools. The compact design and robust construction make it suitable for applications in various industries ranging from aerospace, automotive and electronics to manufacturing assembly lines requiring quick, accurate thread inspection ensuring component integrity and performance reliability.