Collection: Internal Micrometer

Designed for accurate measurement of internal dimensions, bore diameters, and groove widths, internal micrometers deliver precision where external tools cannot reach. Featuring interchangeable anvils and extension rods for various size ranges, these instruments provide reliable readings for quality control and inspection work. Whether you're checking cylinder bores, pipe diameters, or machined holes, these cost-effective tools offer the accuracy needed for critical internal measurements. Built with hardened components and smooth operation for consistent, repeatable results. With access to over 50,000 products, we can source exactly what you need.