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Whether you are working on automotive, home improvement or mechanical tasks, this measuring instrument provides reliable dimensional verification on a wide range of bolt and nut types.

🤩Quick And Accurate Measurement
The bolt size measuring keychain lets you check thread sizes quickly and accurately—no more guesswork. Simply slide the knob with one hand to tighten and measure, confirming the bolt size in seconds while saving time and effort.

🤟Versatile Unit Reading Design
Thread size verification tool provides two unit labels, metric (mm) and imperial (inches). The unit reading design is intuitive and clear, and the inspection can be completed without complicated operation, even for first-time users.

🌟Convenient Keychain Attachment
With a handy keychain loop, this thread size checker attaches easily to your keys or belt, keeping it within reach whenever you need it. No more worrying about losing or misplacing your tool.

Specification:

Name: Portable Precise Thread Size Checker Keychain
SIZE: 3.26*1.06*0.15 inch
Material: Iron
Unit: Imperial, Metric

🔥Widely Use
Thread measuring gauge suitable for inspection of various thread specifications. portable precise thread size checker keychain is ideal for use on construction sites, factory floors, repair services, daily repair, and more.

✨Clear Markings for Easy Reading
The size markings are clearly engraved for straightforward identification of thread sizes, minimizing errors and making it a dependable tool for both professionals and DIYers.