Trusted by machinists, inspectors, and STEM educators for professional dimensional analysis in workshops, production lines, and technical training environments. Optimized for measuring engine cylinders, pipe fittings, and other precisionmachined components across automotive, manufacturing, and scientific research sectors. Constructed from grade stainless steel for longlasting performance; features markings and ergonomic handles for slip control during intricate measurements. The stainless steel inside micrometer offers accurate measurements for various bore sizes, ideal for mechanical and laboratory applications with erosionresistant durability. Use scenarios Automotive service and engine rebuilds: measure cylinder bores and verify piston clearance with accuracy. Manufacturing quality assurance: check bore dimensions on hydraulic fittings, valves, and other cylindrical components to ensure fit and tolerances. STEM labs and technical training: teach dimensional analysis, calibrate equipment, and demonstrate bore measurement techniques across different materials.