The ITP Disc Styli are precision stainless steel spherical disc probes designed for metrology professionals who need to measure large inside diameters and integrated undercuts with reliable, repeatable contact. Model Type O (KIM312704032) features an M3 thread and a 12.7 mm ball diameter for compatibility with standard probe heads.

• Material: Stainless steel construction for durability and corrosion resistance in workshop environments.
• Ball Diameter: 12.7 mm spherical tip designed to access large internal features and capture curved geometry accurately.
• Thread: M3 mounting thread ensures secure attachment to compatible probe heads.
• Disc Stylus Design: Spherical disc geometry optimized to reach into large bores and undercuts while maintaining stable contact.
• Type / Model: Type O variant, model KIM312704032, built to precise manufacturing tolerances.
• Important Note: Normal disks are unsuitable for probing in the Z direction (except discs with radius end rollers).

This disc stylus empowers precise inside-diameter measurements in components such as valves, cylinders, and housings, where traditional tips struggle to reach or maintain contact. Its robust stainless steel body resists wear, while the 12.7 mm ball diameter provides a dependable contact point for consistent data across measurement runs. The M3 thread simplifies integration with standard probing systems, making it a practical choice for routine QA, calibration, and dimensional inspection workflows. Use it when you need reliable access to large internal features and undercuts without compromising measurement integrity.