ITP Star Styli with a ruby ball end provide a precise, rigid solution for measuring internal diameters, undercuts, and threaded features. Designed for 90° access, this variant features an M3 XXT thread and an 11 mm measuring length to reach deep or hard-to-reach areas without bending the probe.

• End tip: Ruby ball tip delivers durable, consistent contact for repeatable measurements.
• Thread compatibility: M3 XXT thread fits standard star-stylus mounting systems for quick, secure setup.
• Measuring length: 11 mm reaching depth without sacrificing stiffness or accuracy.
• Angle configuration: 90° star-angle design enables access to recessed features and bottom-of-hole areas.
• Arm construction: Fixed probe arms provide stable, repeatable measurement paths across sessions.
• Body and build: Robust metal construction crafted for demanding metrology environments.
• Part reference: SCM303005020/90° for clear ordering and traceability.
• Ideal applications: Best suited for measuring large diameters, internal threads, and undercut features where flexibility is limited.

This ruby-ball 90° star stylus helps you capture accurate, repeatable readings in challenging internal features. The combination of an 11 mm measuring length, fixed arms, and a secure M3 XXT connection supports task-specific measurement programs and minimizes probe bending during long gauging paths. Use it with compatible CMM or optical metrology setups to achieve efficient QA checks, reduced fixture changes, and consistent results across parts that demand precise bore and thread evaluation.