An inside micrometer is a precision measuring tool used to accurately determine the internal dimensions of holes, bores, and cavities. Commonly used in machining, engineering, and quality control, it provides highly reliable measurements with minimal margin of error. Inside micrometers typically feature interchangeable rods, a calibrated scale, and a micrometer head for fine adjustments. Designed for durability and precision, they are ideal for applications requiring exact internal measurements. Whether in workshops or industrial environments, an inside micrometer ensures consistent accuracy, helping professionals maintain tight tolerances and achieve superior results in every project.
We stock over 1,200 INSIZE Measuring Instruments to ensure we have a tool for every job.
These tools are accurate, durable, and they come with a 1 year warranty and Certificate of Registration across the range!



















