Welcome to our shop! Product Information: Durable and Corrosion-Resistant: Our Portable Precise Thread Size Checker is crafted from high-quality, corrosion-resistant materials, ensuring long-lasting performance even in hostile environments. Measuring the bolt dimensions has never been this reliable! Easy Size Identification: With clear size markings, this bolt size finder allows both professionals and DIY enthusiasts to easily and accurately identify thread sizes. Say goodbye to measurement errors and hello to precision! Metric and Imperial Measurement: This versatile thread size checker offers both metric and imperial unit readings, giving you the flexibility you need for any project. It's the ultimate tool for anyone looking to measure what truly matters! Convenient Portable Design: Designed for quick and precise measurements, this portable thread size checker easily fits into your toolkit or pocket. Take it to any job site or project without the hasslemeasure it and move on! Keychain Attachment for Accessibility: Never lose your tools again! With a handy keychain ring, this bolt gauge can be attached to your keys or belt, ensuring it's always within reach. The perfect utility locator at your fingertips! Specification: Material: Alloy Package Included: 1 x Thread Size Verification Tool Keychain Note: 1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures. 2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm) Thanks for your support :) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.