Starrett 65055 Mechanical Micrometer Head 25mm Plain Thimble

Product Description

The STARRETT 65055 is a mechanical micrometer head with a 25mm measuring range and a plain thimble design. It features a rotating flat spindle with a carbide measuring face for durability and wear resistance in precision measurement applications. The spindle measures 0.2362 inches in diameter and 1.25 inches in length. The thimble diameter is 0.625 inches. Graduated in 0.01mm increments with an accuracy of 0.002mm, this head delivers reliable, repeatable readings for demanding metrology tasks. The satin chrome finish resists corrosion and reduces glare for easier reading in shop environments. It is installed and used by machinists, toolmakers, and precision measurement technicians.

The STARRETT 65055 is suited for integration into fixtures, gauging stations, and custom measurement setups where a standalone micrometer head is required. It is appropriate for use in machine shops, manufacturing lines, tool rooms, and quality control environments. The advanced sleeve design features staggered lines and distinct figures for precise and easy readability, making it practical for both production and inspection use. The stem diameter of 0.4999 inches and stem length of 0.75 inches allow for standard fixture mounting in typical micrometer head housings.

Key Features

• 25mm measuring range with 0.01mm graduation for fine resolution
• Carbide measuring face resists wear for long service life
• Rotating flat spindle with 0.2362 inch diameter and 1.25 inch length
• Advanced sleeve design with staggered lines and distinct figures for easy readability
• Satin chrome finish reduces glare and corrosion
• Stem dimensions of 0.4999 inch diameter by 0.75 inch length for standard mounting

Compatibility

Designed as a standalone mechanical micrometer head for integration into custom fixtures, gauging assemblies, and precision measurement stations requiring a 0.4999 inch diameter stem mount.

Installation Notes

Installation is performed by machinists or metrology technicians. The micrometer head should be secured in a compatible fixture or mounting block that accepts the 0.4999 inch stem diameter. Ensure the spindle axis is properly aligned with the measurement axis of the fixture before locking the stem in place. Clean the carbide measuring face and contact surfaces before use to ensure accurate readings.