About This 4 Measuring Functions for All Applications:Designed for measuring outside diameter, inside diameter, depth, and step, this professional vernier caliper provides comprehensive functionality for machining, metalworking, and quality inspection. Precision Engineered Accuracy:Offers 0.02mm / 0.001" graduations and 0.03mm accuracy, ensuring reliable and repeatable readings for every measurement — ideal for engineers, craftsmen, and precision tool users. Built from Solid Stainless Steel:Crafted from hardened stainless steel with a satin chrome finish, the surface resists glare, scratches, and corrosion. Distinct etched lines and figures ensure clear visibility even under workshop lighting. Stable Reading with Locking Screw:Equipped with a locking screw to secure your measurement position and a fine adjustment mechanism for smooth, precise movement and stable readings during operation. Built to DIN 862 Standard:Strictly manufactured in accordance with DIN 862 for professional-grade accuracy and durability. A trusted measuring tool for workshops, laboratories, and educational environments. Overview Brand : PEC Tools Material : Stainless Steel Range : 12"/300mm Measurement Accuracy : 0.02mm/0.001" Number of Batteries : Nonstandard Battery batteries required.