Spi 107323-LONG Test Indicator Stylus

Product Description

The SPI 107323-LONG is a replacement stylus designed for use with SPI test indicators. A stylus is the contact point component of a test indicator — it makes physical contact with the workpiece and transmits deflection to the indicator mechanism. Correct stylus selection directly affects measurement accuracy and repeatability. This long-reach stylus allows access to features that a standard-length stylus cannot reach, making it a practical accessory for alignment and positioning measurement tasks performed by machinists, toolmakers, and metrology technicians.

This stylus is intended for use in precision measurement applications where a test indicator is used to check runout, surface alignment, bore positioning, or part-to-fixture positioning. It is suited for shop floor, inspection room, and setup environments. The extended length is useful when measuring deep bores, recessed surfaces, or confined areas on workpieces held in fixtures or chucks.

Key Features

• Long-reach design for access to recessed or deep measurement surfaces
• Designed as a direct replacement stylus for SPI alignment and positioning indicators
• Packaged individually — one stylus per unit
• Lightweight at 0.5 pounds

Compatibility

Designed for use with SPI 13-156-6 and 14-476-63D Alignment and Positioning Indicators.

Installation Notes

Stylus replacement is typically performed by a machinist or metrology technician. Before replacing the stylus, remove the indicator from any active measurement setup and secure the workpiece or fixture so it cannot shift. Follow the indicator manufacturer's guidance for stylus thread engagement to avoid damaging the indicator contact stem. After installing the stylus, verify zero and repeatability before taking critical measurements.