ITP Star Styli are precision probing accessories for CMMs and high-accuracy gauging. This silicon nitride ball star stylus delivers long reach with rigid performance, making it ideal for measuring large diameters, deep bores, undercuts, and threaded features without bending. It features an M3 XXT threaded stem, a 21 mm measuring length, and a 180° orientation for hard-to-reach features.

• Ball tip material: Silicon nitride ball tips at each end provide hardness and wear resistance for repeated contact in demanding measuring environments.
• Thread: M3 XXT threaded stem ensures secure, compatible integration with standard CMM fixtures and probes.
• Measuring length: 21 mm measuring length extends reach into deep pockets, bores, and other long features while maintaining probe rigidity.
• Star geometry and arms: Star stylus design with fixed probe arms supports task-specific measuring programs and tailored setups for complex geometries.
• 180° access: 180° orientation enables measurements close to the bottom of holes when a stem-direction probe isn’t present, improving bottom-hole and recessed-feature gauging.
• Versatility: Particularly well-suited for undercuts and threaded regions, with a configuration that supports a range of measurement tasks without changing tools.

With its robust silicon nitride ball tips and long, rigid reach, this star stylus minimizes deflection on large-diameter features and deep holes. The 21 mm measuring length and M3 XXT thread simplify integration into existing metrology setups, while the 180° access expands where you can measure—ideal for bottom-hole and thread-gauging scenarios. This makes it a practical choice for precision inspection workflows that require reliable, task-specific probing without frequent tool changes and with consistent repeatability across parts.