Spi CMS220519011 Electronic Outside Micrometer 1-2 in

Product Description

The SPI CMS220519011 is a digital outside micrometer designed for precise external dimensional measurement in machine shops, toolrooms, and manufacturing environments. It covers a measurement range of 1 to 2 inches and delivers accuracy of plus or minus 0.00020 inches, meeting ASME B89.1.13 standards. The measuring faces are carbide-tipped for extended wear resistance. A ratchet thimble provides consistent, repeatable measuring force, and a lever-style lock nut holds the reading once the measurement is taken. The spindle rotates for normal operation, and the unit ships pre-calibrated from the factory. This tool is handled by machinists, quality control technicians, and precision fabricators.

The CMS220519011 suits applications where close-tolerance external measurements are required on shafts, pins, fasteners, and similar cylindrical or flat workpieces with dimensions falling between 1 and 2 inches. Its IP65 rating makes it suitable for use in environments where coolant mist, light fluid splash, or fine particulate contamination is present on the shop floor. The digital readout eliminates interpolation errors and speeds inspection workflows. It is well-suited for both in-process checks and final inspection tasks in light to medium industrial production settings.

Key Features

• Measurement range: 1 to 2 inches with digital readout
• Accuracy of plus or minus 0.00020 inches, conforming to ASME B89.1.13
• Carbide-tipped measuring faces for extended service life under repeated use
• IP65 rated for resistance to dust ingress and low-pressure water spray
• Ratchet thimble ensures consistent measuring force across readings
• Lever lock nut for secure spindle position during reading or transfer
• Powered by a single CR2032 lithium battery, included

Compatibility

Designed as a standard digital outside micrometer for general-purpose external measurement tasks requiring a 1 to 2 inch range with electronic readout capability.

Installation Notes

No installation is required for this handheld measuring instrument. Before first use, verify zero calibration at the 1 inch reference point using a certified gauge block or the included setting standard if provided. Keep the measuring faces clean and free of chips or debris before each use. Store the micrometer in its protective case when not in use to prevent damage to the spindle and faces.