Spi CMS220519063 Electronic Inside Micrometer Set

Product Description

The SPI CMS220519063 is an electronic inside micrometer set designed for precise internal bore measurement across a range of 2 to 4 inches. It features a carbide measuring face and a ratchet-stop thimble for repeatable seating force, delivering an accuracy of 0.0002 inches. The set uses an extension rod configuration with a maximum extension rod length of 6 inches and a gage depth of 90 mm, allowing measurements close to the bottom of blind holes. A 3V CR2032 lithium battery is included, and the instrument supports data output for integration with SPC or digital recording systems. Licensed metrology technicians, toolroom machinists, and quality control personnel are the primary users.

This inside micrometer set is suited for precision inspection work in manufacturing, toolroom, and quality assurance environments. The extension rod design accommodates a variety of bore depths and diameters in the 2 to 4 inch range. Measuring contact points are engineered to reach near the bottom of blind holes, making the set applicable in engine rebuilding, hydraulic component inspection, and close-tolerance machining verification. The set is factory calibrated and conforms to ASME B89.1.13 standards.

Key Features

• Measurement range of 2 to 4 inches with 0.0002 inch accuracy
• Carbide measuring faces for extended wear resistance
• Ratchet-stop thimble ensures consistent measuring pressure
• Extension rod type with maximum rod length of 6 inches for deep bore access
• Measuring contact points designed to reach near the bottom of blind holes
• Data output capability for SPC and digital recording integration
• Factory calibrated; conforms to ASME B89.1.13

Compatibility

Designed as an OEM-style precision measurement tool for internal bore inspection applications requiring a 2 to 4 inch range with extension rod capability.

Installation Notes

Setup and zeroing should be performed by a qualified metrology technician or toolroom machinist following the manufacturer documentation included with the set. Store the instrument in its protective case when not in use to prevent damage to the carbide contact faces. Do not exceed the rated measurement range or apply lateral force to the extension rod during measurement, as this can introduce error or damage the spindle.