Spi CMS160725061 Mechanical Inside Micrometer 0.2 to 1.2 in

Product Description

The SPI CMS160725061 is a mechanical inside micrometer designed for precise internal diameter measurement. It covers a range of 0.2000 to 1.2000 inches with a graduation of 0.001 inches, making it suitable for high-accuracy bore and hole inspection work. The ratchet stop thimble delivers consistent measuring pressure, reducing operator-to-operator variation. Carbide measuring faces resist wear for extended service life. The satin chrome finish minimizes glare during use. This tool is NIST-traceable and ships with a short-form certificate of calibration, meeting documentation requirements for quality-controlled environments. It is used by machinists, metrology technicians, and precision tradespeople.

The CMS160725061 is suited for shop-floor and bench-level inspection tasks where internal dimensions must be verified to close tolerances. Typical applications include measuring bored holes, valve seats, cylinder bores, and similar internal features in manufacturing, maintenance, and repair environments. The included setting ring allows the technician to zero and verify the instrument before use. The single-contact-point design and ratchet rod type make it straightforward to use in confined bore openings. This micrometer is appropriate for both production inspection and general precision measurement tasks across metalworking and mechanical trades.

Key Features

• Measurement range of 0.2000 to 1.2000 inches with 0.001-inch graduation
• Ratchet stop thimble for consistent, repeatable measuring pressure
• Carbide measuring faces for extended wear resistance
• Satin chrome finish reduces glare in bright shop environments
• NIST-traceable calibration with short-form certificate of calibration included
• Includes one setting ring for zeroing and verification
• 2-year warranty

Compatibility

Designed as a general-purpose mechanical inside micrometer for use in precision measurement and inspection applications requiring internal diameter readings in the 0.2000 to 1.2000-inch range.

Installation Notes

This instrument is used by metrology technicians, machinists, and qualified tradespeople performing precision measurement. Before use, zero and verify the micrometer using the included setting ring per the manufacturer calibration procedure. Store the instrument in its case away from temperature extremes and moisture to maintain calibration integrity. Do not force the thimble; use only the ratchet stop mechanism to apply measuring pressure.