About this item

Material: Iron+Aluminum Size: 23 × 3 × 15cm 【Fast and Accurate Thread Keychain】: This thread size checker keychain is designed for fast and accurate thread size verification, saving you time and effort on the job. 【Portable Keychain Design】: Easily attach this bolt size checker to your keys or belt loop, ensuring it's always within reach when you need it, making it a handy tool for professionals and DIY enthusiasts. 【Convenient Dual Unit Markings】: The bolt and nut identification gauge features both metric and imperial measurements, offering versatility and convenience, and comes with clear engraved markings to ensure easy and error-free size identification. 【Rugged and Durable Construction】: Made of high-quality materials, this thread checker keychain can withstand frequent use and harsh conditions, ensuring long-lasting performance, making it a valuable assistant in various industries. 【Versatile Applications】: Whether you're working on automotive, home improvement, or mechanical tasks, this thread gauge can provide reliable size verification for a variety of bolt and nut types.