Spi Z6884 Ball Contact Point Carbide Interapid

Product Description

The SPI Z6884 is a carbide ball contact point designed for use with Interapid test indicators. It features a 0.1 inch ball diameter and a contact point length of 2.75 inches, making it suitable for reaching into tight bores, slots, and recesses during precision measurement work. The carbide tip provides wear resistance for repeated contact in production and inspection environments. Machinists, quality control technicians, and tool room professionals install this accessory when standard contact points do not reach the measurement location or when extended reach is required for accurate indicator readings.

This contact point is used in machine shops, inspection departments, and toolroom setups where Interapid test indicators are deployed for surface runout, bore alignment, and feature location checks. The 2.75 inch length accommodates setups where clearance is limited or where the indicator body must be positioned away from the workpiece. It is a direct replacement or supplemental accessory for expanding the capability of an existing Interapid indicator in both light manufacturing and high-precision metrology applications.

Key Features

• Carbide tip construction for extended wear life under repeated contact
• 0.1 inch ball diameter for consistent point contact on curved and flat surfaces
• 2.75 inch contact point length for extended reach into deep bores and recesses
• Designed specifically for Interapid test indicators
• Sold individually, compatible with standard Interapid stylus thread fitting

Compatibility

Designed for use with Interapid test indicators.

Installation Notes

Installation is performed by qualified machinists or metrology technicians familiar with test indicator stylus replacement. The contact point should be threaded in carefully by hand before final snugging to avoid cross-threading the indicator tip stem. Ensure the indicator is removed from any active measuring setup before swapping contact points. Do not overtighten, as carbide tips and indicator stems can be damaged by excessive torque.