Spi CMS160809077 Blade Micrometer 2 to 3 Inches

Product Description

The SPI CMS160809077 is a mechanical blade micrometer designed for precision measurement in tight grooves, slots, keyways, and recessed features where a standard anvil cannot reach. It covers a measurement range of 2 to 3 inches with an accuracy of 0.0002 inches and a graduation of 0.0001 inches, making it suitable for high-tolerance inspection work. The ratchet thimble delivers consistent measuring pressure to reduce operator-induced error. Carbide-tipped anvil and spindle extend service life in production and shop environments. A traceability certificate and calibration standards are included. Machinists, toolmakers, quality technicians, and precision fabricators are the primary users of this instrument.

This blade micrometer is used in manufacturing, toolroom, and quality-control settings where internal features, narrow slots, or grooves must be measured within a 2 to 3 inch range. The thin blade profile, with a blade thickness of 0.030 inches and a blade depth of 0.260 inches, allows access to confined geometries that standard outside micrometers cannot contact. The 0.250-inch spindle diameter and 2.25-inch throat depth provide additional reach into deeper recesses. It ships with a protective case and calibration documentation for compliance-sensitive environments.

Key Features

• Measurement range of 2 to 3 inches with 0.0001-inch graduation for high-resolution readings
• Accuracy of 0.0002 inches for reliable precision inspection
• Blade thickness of 0.030 inches and blade depth of 0.260 inches for access to narrow slots and grooves
• Carbide anvil and spindle for extended wear resistance in production use
• Ratchet thimble ensures repeatable, consistent measuring force
• Includes protective case, short-form certificate of calibration, and standards for documentation compliance

Compatibility

Designed as a general-purpose blade micrometer for toolroom, machining, and quality-inspection applications requiring precision measurement of narrow or recessed features in the 2 to 3 inch range.

Installation Notes

This is a precision measuring instrument, not a component requiring mechanical installation. Calibration should be verified before use and periodically rechecked according to your facility quality plan. Store in the included case when not in use to protect the carbide contact surfaces. Handle with care and avoid dropping, as impact can affect calibration accuracy.