The Aperture Gauge is a stainless steel tool designed for precise measurement of inner diameters in small openings. It features a 315 mm range with 0.1 mm accuracy, and an inner diameter ruler with scale marks for easy readings. Constructed from stainless steel, it offers durability and corrosion resistance for use in workshops or field environments. This gauge is intended for plastic pipes and other thinwalled parts, helping you confirm fit and tolerances without guesswork. Key attributes Functionality: Inner diameter measurement with scale marks on a dedicated ruler for quick readings Range: 315 mm Accuracy: 0.1 mm Material: Stainless steel Design: Inner diameter ruler with scale marks Compatibility: Suitable for plastic pipes and thinwalled parts Performance: Durable, corrosionresistant construction for repeated use Portability: Compact and easy to carry in a toolbox or pocket Construction and usability Material and build: Made from stainless steel to withstand regular use and resist corrosion Readability: Scale marks on the inner diameter ruler provide fast, straightforward readings Size and handling: Compact form designed for convenient handling in tight spaces Two to three use cases Use case 1: Quick onsite verification of plastic pipe inner diameters during installation to ensure proper fit with fittings and connectors Use case 2: Quality control in manufacturing of thinwalled parts, verifying bore sizes within the 315 mm range to meet specifications Use case 3: Maintenance checks of piping systems or thinwalled housings to confirm inner opening sizes before assembly or replacement Notes on care After use, wipe clean and dry to maintain accuracy and longevity Store in a dry place to prevent corrosion and ensure consistent readings This aperture gauge provides a straightforward, reliable method to measure inner diameters precisely, with a clear specification set that matches its intended applications for plastic pipes and thinwalled components.