Meyer Gage Class X MG-25 PLUS Steel Pin Gauge Sets (Inch)

Meyer Gage Class X MG-25 PLUS Steel Pin Gauge Sets (Inch)

The Meyer Gage Class X MG-25 PLUS Steel Pin Gauge Sets (Inch) are high-precision inspection tools designed around a specific nominal size, with 24 additional pin gages included—12 above and 12 below the nominal—each spaced in 0.0001" increments. These Class X tolerance gage pins (±0.000040") are manufactured for GO (PLUS) gauging applications requiring ultra-tight dimensional control.

Each set includes 25 hardened and ground steel pin gages, made from 52100 bearing steel and heat treated to 60–62 HRC. They are ideal for measuring hole sizes, checking tolerances, setting micrometers, or calibrating equipment where extremely close fit is necessary. Pins are laser marked with both size and serial number (excluding the smallest diameters) for complete traceability, and each set is traceable to NIST standards.

Available in multiple size ranges, MG-25 PLUS sets are trusted by precision machinists, aerospace engineers, and QC labs that demand consistently repeatable results. Every pin is finished to a 4 microinch or better surface for optimal insertion and wear resistance.