This high-precision surface ruler is designed for meticulous inspection of surface defects. Its transparent design allows for easy overlay and accurate measurement of cracks, scratches, and spots. Essential for quality controls in construction and engineering, this tool ensures that surfaces meet the highest standards of safety and integrity. Features -Color:Multi -Material:Plastic -Size:9.50X6.00X0.01cm/3.73X2.36X0.00in -Accurate flaw detection: the flaw detection tools offer precise measurement of surface defects, crucial for detailed inspections -Multi-scenario application: ideal for measuring cracks, scratches, and spots, providing a versatile inspection solution - material: made from practical, transparent material, it ensures longevity and clear visibility for accurate measurements -Portable and convenient: its small size and lightweight design make it easy to carry and use in different environments -Clear and accurate markings: features clear scale lines, ensuring users can easily and accurately read measurement results Package list: 1 x plastic crack gauge ruler