Mitutoyo 137-213 Extension Rod Set for Tubular Inside Micrometers

The Mitutoyo 137-213 is a comprehensive extension rod set designed for use with tubular inside micrometers, enabling precise internal diameter measurements from 2 to 20 inches. This professional-grade accessory set includes six extension rods in varying lengths: 0.5 inch, 1 inch, two 2-inch rods, 4 inch, and 8 inch, providing exceptional versatility for a wide range of measurement applications.

Key Features:

• Compatible with tubular inside micrometers with 0.5-inch travel micrometer heads
• Extends measurement range from 2 to 20 inches when combined with appropriate anvils
• Six-piece rod set: 0.5", 1", 2" (2 pieces), 4", and 8" lengths
• Precision-manufactured to Mitutoyo's exacting quality standards
• Enables accurate inside diameter measurements in deep bores and cylinders
• Interchangeable rod system allows customized measurement configurations

This extension rod set is an essential accessory for machinists, quality control technicians, and inspectors who require accurate internal measurements across a broad dimensional range. By combining different rod lengths with the micrometer head and appropriate anvils, users can configure the tool for virtually any inside diameter measurement within the specified range.