Spi 14-142-4 Test Indicator Feeler 4 in Co-ax

Product Description

The SPI 14-142-4 is a replacement feeler accessory designed for use with Co-Ax centering indicators. The feeler serves as the contact element that transmits positional deviation to the indicator body, enabling precise centering and alignment of bores, holes, and circular features on the machine tool. At 4 inches in overall length, it provides the reach needed for standard Co-Ax indicator setups. Installation and use are performed by machinists, toolmakers, and CNC setup technicians working with milling machines, machining centers, or jig borers.

This feeler is applied wherever a Co-Ax centering indicator is used to locate part features relative to the machine spindle centerline. Typical applications include finding the center of a bore, aligning a vise or fixture, and setting up repeat operations that require high positional accuracy. The 4-inch length suits the majority of standard Co-Ax indicator configurations encountered in production and toolroom environments.

Key Features

• 4-inch overall length for reach in standard Co-Ax indicator setups
• Designed as a direct-fit accessory for Co-Ax centering indicators
• Replacement feeler keeps existing indicator bodies in service
• Compact and lightweight at 1 pound packaged weight

Compatibility

Designed for use with Co-Ax centering indicators as stated by the manufacturer. Verify indicator model fitment before ordering to confirm feeler thread and tip compatibility.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before removing or installing the feeler. Ensure the feeler is fully seated and secured in the indicator body before operation. Handle the tip carefully to avoid bending, which will affect measurement accuracy.