Class X Go (Plus) Pin Gauges

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Class X Go (Plus) pin gauges are precision tools crafted from smooth, unthreaded tool steel rods, designed for conducting Go (Plus) tolerance tests on bores. A successful fit of the Go gauge into a hole confirms the bore's compliance with minimal size tolerance standards. Additionally, these gauges serve as calibration tools for measuring equipment. Each 2”-long gauge is accompanied by a short-form accuracy certificate, ensuring traceability to NIST standards.