Upgraded 55 Inch/Metric Thread Checker Kit: 55 detachable nut and bolt thread thecker are individually nested in a custom foam insert—easily remove the exact gauge needed for precise thread inspection. Unlike traditional chain-type or board-mounted thread checker, these detachable thread checker are ultra-lightweight and flexible, perfect for quick size checks in tight, hard-to-reach spaces
Precision Thread Gauge: The thread gauge sae and metric is a high-precision tool made of premium 6601 aluminum, conforming to the Unified Thread Standard (UN) with ANSI B1.1 (2A/2B) certification for SAE threads and ISO 68-1 (6G/6H) for metric threads to ensure lab-grade durability and accuracy—say goodbye to guessing nut and bolt sizes or dealing with mismatched hardware
3 Clear Ways to Read Size: Our thread checker standard and metric kits offer three intuitive options: the dimensions directly engraved on the thread gauge, the dimensions printed on the chart, and the dimensions screen-printed on the foam—ensuring clear readings at a glance. For quick identification, SAE (imperial) gauges are color-coded blue and metric ones red, with all size laser-engraved for superior abrasion resistance and long-lasting clarity, making thread size inspection simple and efficient for both professional repairs and DIY projects