Spi CMS160809041 Mechanical Depth Micrometer 6 in 6 Rods

Product Description

The SPI CMS160809041 is a mechanical depth micrometer designed for precise depth measurement in machining, toolroom, and inspection environments. It covers a maximum measurement range of 6 inches using a set of six interchangeable rotating rods, with a graduation of 0.001 inches and an accuracy of 0.0002 inches. The ratchet stop thimble provides consistent measuring pressure to reduce operator-to-operator variation. The 2.5-inch base length offers a stable reference surface on workpieces. This instrument is calibrated and NIST certified, making it suitable for facilities that require traceable measurement documentation. A short-form certificate of calibration is included.

This depth micrometer is used in precision measurement applications including machining shops, quality control inspection stations, and toolroom environments. It is well suited for measuring slot depths, hole depths, shoulder depths, and step heights on metal workpieces. The digital counter feature assists in reading measurements accurately under shop conditions. Machinists, tool and die makers, quality inspectors, and metrologists are the primary users of this instrument. The included carrying case protects the micrometer and all six rods during storage and transport between workstations or job sites.

Key Features

• 6-inch maximum measurement range with six interchangeable rotating rods
• 0.001-inch graduation with 0.0002-inch accuracy for high-precision work
• Ratchet stop thimble ensures repeatable, consistent measuring force
• 2.5-inch base length provides stable contact on reference surfaces
• Hardened steel measuring face for wear resistance in production environments
• NIST certified with short-form certificate of calibration included
• Digital counter aids in clear, direct reading of measurements

Compatibility

Designed as a standard mechanical depth micrometer for use with conventional 0.001-inch resolution measurement workflows in toolroom, machining, and quality inspection applications.

Installation Notes

This instrument is handled and used by machinists, tool and die makers, and quality inspectors — no installation in the traditional sense applies. Before use, select the appropriate rod for the desired measurement range and ensure the rod is fully seated and locked. Clean the base and measuring face with a lint-free cloth before measurement to avoid debris affecting accuracy. Store the micrometer in the included case when not in use to protect the calibration and surface finish of all components.