1、VERSATILE THREAD MEASUREMENT: Designed specifically for checking fixed bolts or threaded holes in confined areas, this thread checker can measure various bolt and thread sizes, catering to all your needs. 2、DUAL UNIT DESIGN: Featuring a combination of metric and imperial measurements, with 14 different sizes in each unit, this thread checker allows for easy measurements in both metric and imperial standards. 3、WALL MOUNTABLE: With two hanging holes at the top, this thread gauge can be easily stored on the wall when not in use, saving space and ensuring easy accessibility. 4、RELIABLE MATERIAL: Crafted from carbon steel, this thread checker is built to last, providing durability and resistance to corrosion, ensuring long term reliability. 5、WIDE APPLICATIONS: Whether in automotive repairs, machinery maintenance, or any other field, this thread checker is designed to meet your needs and provide accurate measurements. 1 x Thread Checker Item Type: Thread CheckerMaterial: Carbon SteelMetric Specifications: 4MM x 0.7, 5MM x 0.8, 6MM x 1.0, 7MM x 1.0, 8MM x 1.0, 8MM x 1.25, 10MM x 1.0, 10MM x 1.25, 10MM x 1.5, 12MM x 1.25, 12MM x 1.5, 12MM x 1.75, 14MM x 1.5, 14MM x 2.0Inch Specifications: 6-32, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13, 1/2-20