Convenient Dual Scale: Easily identify bolt and nut sizes with metric and imperial measurements for versatile usage and error-free identification. Keychain Compatible: Attach this thread size checker to your keychain or belt loop for quick access, ensuring it's always within reach when needed. Fast and Accurate Measurements: Verify thread sizes swiftly and accurately, saving time and effort with a one-handed knob operation for efficient workpiece tightening. Rugged and Durable Construction: Crafted from high-quality metal materials, this thread gauge is built to last in demanding environments, offering long-term reliability across various industries. Versatile Dimensional Verification: Ideal for automotive, home improvement, and mechanical tasks, this tool provides dependable sizing confirmation for a wide range of bolt and nut types, enhancing precision in diverse applications. Description: Ensure precise measurements with this convenient thread size checker keychain pendant featuring dual metric and imperial scales. Easily identify bolt and nut sizes with clear graduations, eliminating errors. The keychain loop allows for easy attachment to your keychain or belt, ensuring it's always within reach. Designed for fast and accurate measurements, this tool saves time and effort by providing quick thread size verification. Its rugged metal construction ensures durability, making it suitable for various industries. Whether you're working on automotive, home improvement, or mechanical tasks, this thread gauge is a reliable assistant for verifying dimensions of different bolt and nut types. Item Name: Keychain Pendant Material: Iron Applicable Scope: Thread Size Checking Features: Multipurpose, Portable, Dual Scale Size Details: L: 9cm, W: 3cm, H: 1cm(Approx.) Notes: 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. Package Includes: 1 Pc: 1 x Keychain Pendant or 2 Pcs: 2 x Keychain Pendant