Spi 14-138-2 Test Indicator Feeler Co-ax Centering

Product Description

The SPI 14-138-2 is a replacement feeler accessory designed for use with Co-Ax centering indicators. The feeler measures 2 inches in overall length and serves as the contact probe that transfers surface position data to the indicator body during centering and alignment operations. Machinists and toolroom technicians use this feeler to locate hole centers and align workpieces on mills, boring machines, and lathes. Maintaining a quality feeler in good condition is essential for repeatable, accurate readings from the Co-Ax centering indicator system. The part weighs approximately 1 pound packaged.

This feeler is suited for precision machining environments where Co-Ax centering indicators are part of the standard tooling setup. Typical applications include centering bored holes, locating existing features relative to the spindle centerline, and verifying fixture alignment. It is used in both production and toolroom settings by machinists, mold makers, and die makers who rely on Co-Ax indicator systems for repeatable setup work.

Key Features

• 2-inch overall length provides reach for standard centering indicator applications
• Designed as a direct accessory for Co-Ax centering indicator systems
• Replacement-ready design keeps Co-Ax indicator systems operational without full unit replacement
• Compact form factor suits use on vertical mills, horizontal mills, and boring equipment

Compatibility

Designed for use with Co-Ax centering indicators. Verify fitment with your specific Co-Ax indicator model before installation.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians familiar with precision measuring instrument maintenance. Power down and lock out any machine spindle before removing or installing indicator accessories. Handle the feeler carefully to avoid nicks or bends that would compromise measurement accuracy. Refer to the Co-Ax indicator manufacturer documentation for correct feeler attachment procedure.