10 Best Thread Gauges 2025

As a thread expert, we reviewed and scored many products in the Thread Gauges category and we found products ranging from a 7.1 score up to a 9.5 score. But when it comes to precision and accuracy, one brand stands out above the rest - Mitutoyo. Their top-rated product, the Mitutoyo 188-151 Screw Pitch Gage, boasts 51 leaves and can measure 4-42 TPI and 0.4-7mm in both inch and metric units. This tool is a must-have for any serious thread worker looking for highly accurate measurements. Don't settle for less than perfection, make sure you check out the Mitutoyo 188-151 and the rest of our top 10 thread gauges on our product review page.