The Extension Rod Inside Micrometer is a precision measuring tool that allows accurate measurement of the inner diameter of cylindrical objects. This micrometer features a unique design, with an extension rod that can be added or removed to the standard tool for measuring deep holes or bores. The micrometer consists of a sleeve, a thimble, a locking nut, and a measuring spindle. The sleeve contains the scale, while the thimble rotates to provide precise measurements. The locking nut allows the spindle to hold its position, providing consistent readings. The extension rod allows the user to reach deep into a bore or hole, making it ideal for measuring bores in engines, cylinders, and other machinery. The rod can be easily attached or removed as needed, providing flexibility and versatility in measuring applications. The Extension Rod Inside Micrometer features high-quality materials, ensuring accuracy and durability. Additionally, its simple design allows for easy operation and quick measurements. In summary, the Extension Rod Inside Micrometer is an essential tool for precision measurements of inner diameters in various applications. Its unique design and high-quality materials make it a reliable and accurate measuring tool for mechanics, engineers, and hobbyists.

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