Spi MS150825006 Interchangeable Rod Micrometer 1-2 in

Product Description

The SPI MS150825006 is a mechanical interchangeable rod micrometer designed for inside diameter and bore measurement in the 1 to 2 inch range. It delivers a graduation of 0.001 inch and an accuracy of 0.00035 inch, making it suitable for precision work where tight tolerances matter. The micrometer ships with 2 interchangeable rods, each marked to identify its measurement range, allowing quick field swaps without guesswork. A NIST Traceability Certification and a short-form certificate of calibration are included. Machinists, toolmakers, metrologists, and quality technicians are the primary users of this instrument.

This micrometer is suited for precision dimensional inspection in machine shops, manufacturing facilities, and quality control environments. The interchangeable rod design makes it practical for measuring bores and internal features across the 1 to 2 inch span using a single handle body. The instrument is fully mechanical with no digital counter, keeping operation straightforward in environments where electronic instruments are impractical. Each rod is labeled for its specific range, reducing setup errors during measurement.

Key Features

• Measurement range: 1 to 2 inches via interchangeable rods
• Graduation of 0.001 inch for precise reading
• Accuracy of 0.00035 inch per measurement
• 2 interchangeable rods included, each marked for its measurement range
• NIST Traceability Certification and short-form calibration certificate included
• Fully mechanical operation — no battery or digital counter required
• Includes protective carrying case

Compatibility

Designed as a standalone mechanical inside micrometer for bore and internal diameter measurement in the 1 to 2 inch range. Compatible with standard interchangeable rod micrometer systems that accept rods with a 0.248 inch rod diameter.

Installation Notes

This instrument is used by machinists, metrologists, and quality technicians — no installation trade license is required, but proper metrology procedure should be followed. Before use, verify calibration against a known standard and zero the instrument according to manufacturer procedure. Handle contact surfaces and rods carefully to avoid damage that would affect accuracy. Store in the provided case when not in use to protect the measuring faces and rods.