Spi CMS220519008 Electronic Outside Micrometer Set

Product Description

The SPI CMS220519008 is an electronic outside micrometer set designed for precision external dimensional measurement across a 0 to 3 inch range. The set features a ratchet thimble for consistent measuring pressure and carbide-tipped measuring faces for long-term wear resistance. Resolution is 0.0001 inch with an accuracy of plus or minus 0.0002 inch, making it suitable for close-tolerance inspection work. A digital readout with data output capability allows direct integration with statistical process control or data logging systems. The set ships with a wooden storage box and a CR2032 lithium battery installed. Machinists, toolroom technicians, and quality control inspectors use this instrument for production and incoming inspection tasks.

This electronic outside micrometer set is suited for shop-floor and toolroom environments where repeatable, high-resolution measurement of external features is required. Typical applications include verifying shaft diameters, round stock, and machined part dimensions. The 0 to 3 inch measurement range covers a broad spectrum of common workpiece sizes encountered in general machining, fabrication, and quality assurance operations. The ratchet thimble mechanism standardizes applied force across multiple users and measurement cycles, reducing operator-to-operator variation.

Key Features

• 0 to 3 inch measurement range with 0.0001 inch resolution
• Accuracy of plus or minus 0.0002 inch for close-tolerance inspection
• Carbide-tipped measuring faces resist wear in production environments
• Ratchet thimble provides consistent, repeatable measuring pressure
• Data output port supports SPC and data logging integration
• Rotating spindle and factory calibration included
• Ships complete with wooden storage box and CR2032 lithium battery

Compatibility

Designed as a general-purpose electronic outside micrometer set for external dimensional measurement applications in toolroom, production, and quality control settings.

Installation Notes

Micrometers require no installation but should be stored in the included wooden box when not in use to protect the measuring faces and digital components. Before first use, verify calibration against a known gauge block or standard and allow the instrument to reach ambient temperature to avoid thermal measurement error. Battery replacement uses a standard CR2032 lithium coin cell. Handle measuring faces with care and avoid contact with abrasive surfaces to preserve carbide tips.