RS PRO Internal Micrometer, Range 25 mm →50 mm

To measure the internal diameters of objects, use this professional micrometer from RS PRO. It's made of hardened stainless steel for resistance to rust, meaning it's suitable for use with wet media. Its satin chrome finish reduces glare from light sources to ensure you can easily see the item you're measuring.

As the instrument is accurate to 0.005 mm, it's designed for high-precision measurements. The barrel and thimble include microfine calibrations that make it easy to get precise readings. It comes with everything you need to make accurate measurements, including a ratchet stop that ensures consistent pressure between the measuring surfaces. It also comes with a locking screw and micrometer head. For added convenience, it's manually operated and doesn't require the use of batteries or an external power source.