Spi CMS160809056 Anvil Micrometer 12-16 in 4 Anvils

Product Description

The SPI CMS160809056 is a mechanical interchangeable anvil micrometer designed for large-diameter precision measurement in the 12 to 16 inch range. It ships with four solid carbide anvils, allowing the technician or machinist to span the full range in 1-inch increments. Accuracy is rated at 0.0004 inches with a graduation of 0.001 inches. A ratchet stop thimble ensures consistent measuring pressure across readings, and the rotating spindle design simplifies positioning on the workpiece. The unit ships calibrated and includes a short-form certificate of calibration traceable to NIST standards, making it ready for immediate use in inspection and quality-control applications.

This micrometer is suited for precision measurement tasks in manufacturing, tooling, machine shops, and metrology environments where large-bore or large-diameter components require accurate outside measurement. The four-anvil set covers the full 12 to 16 inch span without additional purchases. The included case and calibration documentation make it appropriate for both shop-floor use and formal inspection stations where traceability is required.

Key Features

• Measurement range of 12 to 16 inches using four interchangeable solid carbide anvils
• Accuracy of 0.0004 inches with 0.001 inch graduation for precise readings
• Ratchet stop thimble delivers consistent spindle pressure on every measurement
• Solid carbide anvils and spindle for wear resistance and long service life
• Calibrated at the factory with NIST-traceable short-form certificate of calibration included
• Ships with protective case and reference standards for field or lab use

Compatibility

Designed as a general-purpose interchangeable anvil outside micrometer for use in machine shop, manufacturing, and inspection applications requiring large-range measurement from 12 to 16 inches.

Installation Notes

Anvil changes should be performed on a clean, stable surface to prevent damage to the carbide measuring faces. Always zero and verify calibration after swapping anvils before taking measurements. Store in the provided case when not in use to protect the calibrated surfaces. Calibration should be rechecked periodically per applicable shop quality procedures.