Spi CMS220519041 Electronic Inside Micrometer 100-125mm

Product Description

The SPI CMS220519041 is an electronic inside micrometer designed for precision internal bore and hole measurements in the 100.00 to 125.00 mm range. It delivers an accuracy of plus or minus 0.00020 inches, making it suitable for applications where tight tolerances are critical. The measuring faces are constructed from solid carbide for long-term wear resistance. A ratchet stop thimble provides consistent measuring pressure, reducing operator-to-operator variation. The instrument includes data output capability, allowing readings to be transmitted to a compatible data collector or SPC system. It is calibrated at the factory and ships ready for use. Machinists, metrologists, and quality control technicians working in precision manufacturing environments are the primary users.

This inside micrometer is used for measuring internal diameters in bores, cylinders, sleeves, and similar features where a high degree of dimensional accuracy is required. It is well suited to machine shops, toolrooms, and quality inspection departments handling medium-to-large bore components. The 100.00 to 125.00 mm measurement range covers a broad set of common bore sizes encountered in industrial and precision machining work. The ratchet rod type ensures repeatable seating during measurement. The unit ships with a wooden storage box, which protects the instrument and keeps it organized during transport and storage.

Key Features

• Measurement range of 100.00 to 125.00 mm for medium-to-large internal bores
• Accuracy of plus or minus 0.00020 inches for tight-tolerance inspection work
• Solid carbide measuring faces for extended service life and wear resistance
• Ratchet stop thimble for consistent, repeatable measuring force
• Data output port for connection to SPC systems or digital data collectors
• Factory calibrated and ships with a protective wooden storage box

Compatibility

Designed as a standalone precision measurement instrument for internal diameter measurement in the 100.00 to 125.00 mm range; compatible with data collection systems that accept standard micrometer data output signals.

Installation Notes

Electronic inside micrometers require no permanent installation. Prior to use, verify calibration using a known standard and allow the instrument to thermally stabilize in the measurement environment. Handle the carbide measuring faces with care to avoid chipping or contamination that could affect accuracy. Replace the CR2032 lithium battery when the low-battery indicator appears to maintain reliable data output performance.