Optimized for measuring engine cylinders, pipe fittings, and precision machined components across automotive, manufacturing, and scientific research sectors Trusted by machinists, inspectors, and STEM educators for professional dimensional analysis in workshops, production lines, and technical training environments Accuracy crafted stainless steel inside micrometer delivers precise measurements for various bore sizes, ideal for mechanical and laboratory applications with erosion resistant durability grade stainless steel construction ensures long lasting performance, featuring clear markings and ergonomic handles for slip control during intricate measurements Use scenario: measure engine cylinder bores during assembly or servicing to verify tolerance and fit Use scenario: check bore sizes of pipe fittings and hydraulic components to ensure proper mating and performance Use scenario: quality control in production lines or educational labs, validating tolerances of machined components and reusable calibration checks