Gaugestools Metric Thread Gauge is a precision-engineered tool designed to measure and verify the accuracy of ISO metric screw threads. Manufactured from high-quality, oil-hardened GCr15 bearing steel with a hardness of 58–62 HRC, it offers superior durability and wear resistance. Available in GO and NO-GO types for both plug and ring gauges, it covers thread sizes from M2 to M200. Ideal for engineers and manufacturers, this gauge ensures precise thread inspection and reliable quality control.