Spi CMS161205006 Outside Micrometer 3 Inch Range

Product Description

The SPI CMS161205006 is a mechanical outside micrometer designed for precision measurement in machining, manufacturing, and metrology applications. It covers a measurement range of up to 3 inches with a graduation of 0.0001 inches and an accuracy of 0.0002 inches, making it suitable for close-tolerance inspection work. The ratchet stop thimble delivers consistent measuring force, and the rotating spindle allows standard measurement technique. Measuring faces are solid carbide for long-term wear resistance. The unit ships calibrated with NIST traceability certification included, ready for use on the shop floor or in a quality lab.

This outside micrometer is used in precision machining shops, tool rooms, fabrication facilities, and quality control departments. It is appropriate for measuring shafts, pins, stock, and other external dimensions where tolerances demand readings finer than a standard dial caliper can reliably deliver. The included case and standards make it a self-contained measurement package for bench or field inspection work. Machinists, quality technicians, and toolmakers are the primary installers and users of this instrument.

Key Features

• Measurement range up to 3 inches with 0.0001 inch graduation
• Accuracy of 0.0002 inches for close-tolerance inspection
• Ratchet stop thimble ensures repeatable, consistent measuring force
• Solid carbide measuring faces resist wear over extended use
• Satin chrome finish reduces glare and corrosion
• Ships calibrated with NIST traceability certification, case, and standards included

Compatibility

Designed as a standard outside micrometer for general-purpose external dimensional measurement in machining and inspection environments.

Installation Notes

Outside micrometers require no installation but should be stored in the included case when not in use to protect the measuring faces and calibration. Before use, verify the zero setting against the included standards and re-zero if needed. Avoid dropping or placing the instrument near sources of heat or magnetic fields, as these can affect calibration. Calibration verification should be performed periodically per your facility quality procedures or applicable metrology standards.