Ideal for process inspectors, construction professional, and industrial maintenance requiring stable surfaces imperfection assessment instruments The color contrast scale design enables fast visual comparison of surfaces flaws, while the compact 4 gauge set provides versatile measurement across multiple industrial applications Double Sided Laminated Stain & cracks Comparison Gauges precise defect detection with four strong , surfaces inspection tools for professional component evaluations Crafted from , warp these cracks measurement tools feature double sided protective film coating to secure long lasting accuracy in demanding work environments Perfect for on site concrete inspection, manufacturing checks, and infrastructure maintenance projects where portable defect identification tools are essential, Weight: 0.01763698096 pounds, Manufacturer: NONDK