This Starrett 172A Thickness Gage is an accurate and reliable tool for measuring the thickness of a wide range of materials. The feeler gauge set has straight leaves with markings in inches. This gage can measure between 0.0015 in and 0.015 in, making it suitable for a variety of applications such as measuring metal sheet, brass, wire and more. Its tempered steel blades are designed to be long lasting and resistant to rusting and bending. The included blades vary from 0.0015 in to 0.015 in, allowing you to easily select the most appropriate blade for your needs without having to switch between sets or instruments. When it comes to accuracy, reliability and ease of use, there's no better choice than this Starrett 172A Thickness Gage Set.