Spi CMS161205002 Outside Micrometer 2 Inch Ratchet Stop

Product Description

The SPI CMS161205002 is a mechanical outside micrometer designed for high-precision linear measurement in shop, tool room, and inspection environments. It covers a measurement range of 0 to 2 inches with a graduation of 0.0001 inches and an accuracy of 0.0002 inches, making it suited for close-tolerance work where manual gauging is required. The micrometer ships calibrated and includes NIST traceability certification, a short-form certificate of calibration, and a protective case. Machinists, tool and die makers, and quality technicians are the primary users of this instrument.

This micrometer is used wherever outside dimensions of parts, stock, or workpieces must be verified to four decimal places. Typical applications include incoming inspection, in-process checks on turned or ground components, and toolroom measurement tasks. The solid carbide measuring faces resist wear during repeated contact cycles. The satin chrome finish reduces glare under shop lighting and provides corrosion resistance in typical indoor environments.

Key Features

• 0 to 2 inch measurement range with 0.0001 inch graduation
• Accuracy of 0.0002 inches for close-tolerance inspection work
• Ratchet stop thimble provides consistent, repeatable measuring force
• Rotating spindle design for smooth advancement and reduced backlash
• Solid carbide measuring faces for extended wear life
• Ships calibrated with NIST traceability certification and short-form calibration certificate
• Satin chrome finish reduces glare and resists corrosion

Compatibility

Designed as a standard outside micrometer suitable for general-purpose measurement of external dimensions on cylindrical, flat, or profiled workpieces within a 0 to 2 inch range.

Installation Notes

Outside micrometers do not require installation in a mechanical system, but proper handling procedure applies. Store the instrument in the included case when not in use and allow the micrometer and workpiece to reach the same ambient temperature before measuring to avoid thermal expansion error. Do not over-tighten the thimble against the workpiece; use the ratchet stop to apply consistent, controlled measuring force. Recalibrate periodically per your facility quality plan or applicable metrology standards.