0-150mm Carbon Fiber Digital Vernier Caliper Dual MM/INCH Unit Measure Inner/Outer Diameter of Jewelry Hardware Mechanical Pa

Dual mm/inch Unit Conversion:One-click switch between millimeter and inch units to meet different measuring habits for global users.0-150mm Multi-Purpose Measuring:0-150mm full measuring range supports inner/outer diameter and depth measurement for jewelry, hardware and mechanical parts.Lightweight Carbon Fiber Build:Made of carbon fiber composite material, lightweight yet durable, anti-warping and corrosion-resistant for long-term use.Clear Large LCD Digital Display:Features a large digital screen for intuitive readings, eliminating visual parallax errors from traditional vernier scales.User-Friendly Operation:Equipped with zero-setting button and on/off button for quick calibration and easy operation, friendly for beginners.Compact & Portable Design:Compact size of 23.7×7.7cm for easy carrying and storage, ideal for workshops, home use, jewelry making and DIY projects.