Starrett 52966 Ball Contact Point Carbide 0.1181 in

Product Description

The STARRETT 52966 is a carbide ball contact point designed for use with dial test indicators in precision measurement applications. The spherical carbide tip measures 0.1181 inches in diameter, and the overall contact point length is 5/32 inches (approximately 0.156 inches). Carbide construction provides excellent wear resistance and dimensional stability during repeated contact cycles, making it well suited for high-frequency inspection work on machine tools, fixtures, and precision assemblies. Metrology technicians, machinists, and quality control professionals install and service these contact points as part of routine indicator maintenance.

This contact point is intended for use with the Starrett 711 Series Last Word Dial Test Indicators. It is appropriate for precision measurement tasks in manufacturing, machining, and quality assurance environments. The ball-style tip is commonly used when measuring in grooves, bores, and recessed features where a flat or pointed contact would not make reliable contact with the workpiece surface.

Key Features

• Carbide tip material for superior wear resistance and long service life
• Ball diameter of 0.1181 inches (3.00 mm) for consistent contact geometry
• Contact point length of 5/32 inches (3.97 mm)
• Tip diameter of 0.1200 inches for precise surface engagement
• Ball-style design suited for grooves, bores, and recessed measurement surfaces
• Sold individually, single package quantity

Compatibility

Designed for use with Starrett 711 Series Last Word Dial Test Indicators as stated by the manufacturer.

Installation Notes

Contact point replacement on dial test indicators is typically performed by machinists or metrology technicians. Power down or disengage any automated equipment before servicing the indicator. Use the appropriate contact point wrench or fitting tool to avoid damaging the indicator spindle or thread. Do not overtighten the contact point, as this can affect indicator calibration and spindle function.