Spi CMS220519019 Electronic Tube Micrometer 0-1 in

Product Description

The SPI CMS220519019 is an electronic tube micrometer designed for precise measurement of tube wall thickness and similar applications requiring a specialized anvil geometry. It covers a measurement range of 0 to 1.00 inch with a resolution of 0.0001 inch and an accuracy of 0.0001 inch, making it suitable for quality control and inspection work in manufacturing and mechanical trades. The micrometer features a carbide anvil for wear resistance, a ratchet thimble for consistent measuring pressure, and a positive lock nut to hold readings securely. It is calibrated to ASME B89.1.13 standards and weighs 0.85 pounds.

This instrument is used in precision measurement applications where standard flat-anvil micrometers cannot access tube walls or similar curved or hollow workpieces. Typical users include machinists, quality control technicians, and tool room personnel working in manufacturing, aerospace, automotive, and industrial maintenance environments. The rotating spindle and ratchet thimble allow repeatable measurements across multiple operators. The unit ships in a plastic storage box for protection and safe transport.

Key Features

• Electronic readout with 0.0001 inch resolution for precise measurements
• Carbide anvil resists wear during repeated use on hard materials
• Ratchet thimble provides consistent and repeatable measuring force
• Positive lock nut secures the spindle position to hold readings
• Rotating spindle design accommodates tube and hollow workpiece geometry
• Calibrated to ASME B89.1.13 standards; includes plastic storage box

Compatibility

Designed as an OEM-style precision measuring instrument suitable for general tube wall thickness measurement applications in quality control and machine shop environments.

Installation Notes

Tube micrometers are handled and used by machinists and quality control technicians; no power shutoff is required, but the instrument should be zeroed and verified against a known standard before use. Store the micrometer in its included plastic box when not in use to protect the anvil and spindle surfaces. Do not exceed the rated measurement range, and clean contact surfaces before each use to ensure accurate readings.