Rugged and : Made of high-quality, - materials, this thread size checker can withstand frequent use and harsh conditions, providing reliable long-term performance Clearly Marked, Easy to Read: Size markings are clearly engraved for immediate identification of thread size, minimizing errors, making it a reliable tool for professionals and DIY enthusiasts Multiple Unit Readings: This includes both metric and imperial units, providing flexibility and convenience for precise measurements on any project There are slight differences in appearance between batches, and the color of the bolts may be random, don't accept the specified, which does not affect the applicability, Manufacturer: Ounfhtrttk