Spi 14-139-0 Test Indicator Feeler Co-ax Centering

Product Description

The SPI 14-139-0 is a replacement feeler accessory designed for use with Co-Ax centering indicators. The feeler arm serves as the contact point that transfers workpiece surface position data to the indicator mechanism, enabling accurate centering and alignment during setup operations on mills, lathes, and machining centers. At 4 inches overall length, this feeler provides the reach needed for standard Co-Ax indicator applications. Machinists and toolroom technicians install this component when the original feeler is worn, damaged, or lost. It weighs approximately 1 pound and ships as a single unit.

This feeler is suited for machine shop environments where Co-Ax centering indicators are used for workpiece location, bore centering, and fixture alignment. Typical applications include CNC and manual milling setups where precise centering of round features is required before machining operations begin. It is a direct accessory replacement intended for professional machining and toolroom use.

Key Features

• 4 inches overall length for standard Co-Ax indicator reach
• Designed as a direct accessory replacement for Co-Ax centering indicators
• Single-unit packaging suitable for individual replacement needs
• Compact form factor supports precise workpiece alignment tasks

Compatibility

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

Installation Notes

Installation is performed by machinists or toolroom technicians familiar with indicator accessories. Power down and lock out any machine spindle before removing or installing feeler components. Ensure the feeler is fully seated and secured in the indicator body before returning the tool to service. Handle the feeler tip carefully to avoid damage that could affect measurement accuracy.