Class X No-Go (Minus) Pin Gauges

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Precision-engineered Class X No-Go (Minus) pin gauges are crafted from high-quality tool steel, designed for accurate No-Go (Minus) tolerance testing in bores and holes. These unthreaded, smooth rods ensure precise measurements; if the gauge doesn't fit, the hole meets the maximum size tolerance. Ideal for calibrating measuring instruments, each 2” gauge includes a short-form accuracy certificate, traceable to NIST standards.