Spi 644424 Test Indicator Flat Contact Point 7/8 in

Product Description

The SPI 644424 is a flat-style replacement contact point designed for use with dial test indicator gages. Measuring 7/8 inch in contact point length and machined from steel, this contact point provides a stable, flat bearing surface for precise measurement readings. It is a standard consumable component in metrology and precision measurement workflows, replaced as part of routine maintenance when wear or damage affects accuracy. Machinists, tool and die technicians, quality control inspectors, and calibration professionals will find this a straightforward drop-in replacement for worn or damaged contact tips.

This contact point is suited for bench and floor-level inspection tasks where a flat contact surface is required. Typical applications include surface flatness checks, runout measurements, and feature height comparisons performed with dial test indicators mounted on magnetic bases, surface gages, or indicator holders. The flat contact style is commonly selected when the measurement surface is broad, flat, or requires more contact area than a standard ball-tip contact point provides.

Key Features

• Flat contact style provides stable surface contact for flatness and runout measurements
• 7/8 inch contact point length fits standard dial test indicator gage configurations
• Steel construction offers durability through repeated measurement cycles
• Sold as individual replacement contact point for targeted maintenance

Compatibility

Designed for use with dial test indicator gages. No specific model compatibility data was provided beyond this general product-type fitment.

Installation Notes

Contact point replacement on dial test indicators is typically performed by metrology technicians or machinists using standard hand tools. Power down or de-energize any associated electronic readout equipment before servicing the indicator. Ensure the threaded contact point is fully seated and secure before returning the gage to service to avoid measurement error or component loss. Follow the indicator manufacturer's torque guidance if specified in the tool's documentation.