Features: Accuracy crafted stainless steel inside micrometer offer accurate measurements for various bore sizes, ideal for mechanical and laboratory applications with erosion resistant durability. High stainless steel construction ensures long lasting performances, featuring markings and ergonomic handles for slip easy control during intricate measurements. Trusted by machinists, quality inspectors, and STEM educators for professional dimensional analysis in workshops, production lines, and technical training environments. Optimized for measuring engine cylinders, pipe fittings, and accuracy machined components across automotive, manufacturing, and scientific research sectors. This versatile measuring instrument combines portability with laboratory levels accuracy, making it indispensable for both industrial maintenance tasks and advanced engineering projects. Specifications: Component : Stainless Steel Accuracy: ±0.01mm Storage Size: about 84X32X37MM/101X34X37mm(optional) Package Includes: 1xInside Micrometer 1xStorage Case note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.