Tubular Inside Micrometers ไมโครมิเตอร์ 50-63 มม. Mitutoyo รุ่น 137-011

- Micrometer head for Extension-Rod Type inside micrometer.
- Reference point setting is necessary.
- An optional inside-length standard, such as Gauge Block Accessory Set or a setting
ring, is required for accurately setting the micrometer before measurement. (refer
to pages 01-19 to 01-22 and 08-52 for details)