The 52-Blade Thread Measuring Gauge is an essential diagnostic tool designed for machinists, mechanics, and engineers who need quick, reliable identification of unknown thread sizes. Featuring a dual-ended layout, this combination gauge houses 24 Metric blades (ranging from 0.25 mm to 6.0 mm pitch with 60° profiles) on one side and 28 Imperial/Whitworth blades (ranging from 4 to 62 TPI with 55° profiles) on the other.

Each blade is precision-stamped with clear pitch markings, allowing you to quickly match the serrated teeth directly against male or female threads. Constructed from hardened stainless steel, it resists wear and corrosion while maintaining accurate profiles through thousands of uses. The compact folding design keeps all blades organized, protected, and easily accessible on the job.