The hardened face tubular inside micrometer is an extension rod type that offers interchangeable extensions with cylindrical gage rods that are spring-mounted in protective sleeves so the measuring range can be extended. It has a measuring range of 2 to 20".
The hardened face tubular inside micrometer is an extension rod type that offers interchangeable extensions with cylindrical gage rods that are spring-mounted in protective sleeves so the measuring range can be extended. It has a measuring range of 2 to 20".