Mitutoyo 151-272 Mechanical Micrometer Head 2 Inch

Product Description

The MITUTOYO 151-272 is a mechanical micrometer head designed for precision measurement and positioning applications in industrial, tooling, and metrology environments. It covers a measurement range of 0 to 2 inches with an accuracy of 0.0002 inches, making it suitable for applications requiring tight dimensional control. The head features a flat rotating spindle with a carbide measuring face for durability under repeated use. A ratchet stop thimble with a diameter of 0.8268 inches ensures consistent measuring force. The overall assembly is 7.52 inches long and weighs 0.5 pounds. Installation and adjustment are typically performed by machinists, metrology technicians, or precision equipment maintenance personnel.

The MITUTOYO 151-272 is suited for use in machine tool setups, jig fixtures, inspection equipment, and custom measuring rigs where a reliable mechanical micrometer head is required. The chrome-plated finish resists corrosion and wear in shop environments. The 8 mm diameter spindle and 29 mm stem are sized for standard micrometer head mounting configurations commonly found in production and quality control settings.

Key Features

• Measurement range: 0 to 2 inches with 0.0002 inch accuracy
• Flat rotating spindle with carbide measuring face for extended service life
• Ratchet stop thimble ensures repeatable, consistent measuring force
• Chrome-plated finish for corrosion and wear resistance
• Sturdy construction suitable for use with or without a ratchet
• Compact stem design at 0.5 inches diameter for standard fixture mounting

Compatibility

Designed as a replacement-style mechanical micrometer head for precision measurement fixtures, machine tools, and inspection equipment that accept a standard stem-mount micrometer head configuration.

Installation Notes

Installation is typically performed by a machinist or metrology technician. Power down or de-energize any automated equipment before installing or adjusting the micrometer head in a fixture. Secure the stem in the mounting bore to the fixture manufacturer's specified clamping method without overtightening, which can distort the stem bore and affect accuracy. Verify spindle movement and zeroing procedure after installation before taking measurements.