Spi CMS220519053 Electronic Inside Micrometer 25-30mm

Product Description

The SPI CMS220519053 is an electronic inside micrometer designed for precise internal bore and diameter measurements in the 25.00 to 30.00 mm range. Built with solid carbide measuring faces for long-term wear resistance, this instrument delivers accuracy to plus or minus 0.00020 inches. A ratchet stop thimble provides consistent measuring pressure, reducing operator-induced error. The tool includes data output capability, allowing measurements to be transmitted directly to a data collection system or SPC software. It is calibrated from the factory and ships with a 3V CR2032 lithium battery installed. Machinists, quality control technicians, and precision measurement professionals are the primary users of this instrument.

This inside micrometer is suited for shop floor and inspection room use wherever precise internal measurements in the 25.00 to 30.00 mm range are required. The extension rod design, with a maximum extension rod length of 6 inches, extends reach into deeper bores. A setting ring diameter of 1.0000 decimal inch is included for field calibration verification. The 97.00 mm gage depth accommodates a range of bore configurations in machined components, castings, and assemblies. This instrument is appropriate for manufacturing, toolroom, and quality assurance environments.

Key Features

• Measurement range: 25.00 to 30.00 mm with plus or minus 0.00020 inch accuracy
• Solid carbide measuring faces resist wear during repeated use
• Ratchet stop thimble ensures consistent, repeatable measuring force
• Data output port supports direct connection to SPC or data logging systems
• Extension rod type with maximum 6 inch rod length for deeper bore access
• Factory calibrated and ships with CR2032 lithium battery included

Compatibility

Designed as a precision inside micrometer for internal bore measurement applications in the 25.00 to 30.00 mm range, compatible with standard data output collection systems that accept micrometer SPC input.

Installation Notes

This instrument is handled and used by machinists and quality technicians — no installation in the traditional mechanical sense is required. Before use, verify calibration against the included setting ring and ensure the measuring faces are clean and free of debris. Do not overtighten the thimble; use only the ratchet stop to apply measuring pressure. Store in the provided case when not in use to protect the carbide faces and electronic components.