The ITP Disc Styli stainless steel Prob Ball is a precision spherical-disk probe designed to tackle measurements of large inside diameters and integrated undercuts. Built for reliability in metrology workflows, it features a robust M5 threaded shank and a 30 mm ball to deliver accurate contact readings with standard probing systems.

• Material: Stainless steel construction for durability, corrosion resistance, and long service life in demanding environments.
• Ball Diameter: 30 mm spherical tip provides stable, repeatable contact on large bores and complex internal features.
• Thread: M5 threaded shank for secure mounting in common probe heads and adapters.
• Configuration: Type O design optimized for spherical-disk probing tasks, including large internal diameters and undercut geometries.
• Application Note: Particularly suited for measuring large inside diameters and integrated undercuts; normal disks are not ideal for probing in the Z direction unless paired with radius-end rollers.

In practice, this disc stylus enables precise inside-diameter measurements and thorough inspection of recessed features, with a geometry that reaches into tight or expansive interior spaces where other probes struggle. Its sturdy stainless steel body stands up to daily shop-floor use, while the 30 mm ball geometry helps maintain accuracy across repeated measurements. The standard M5 mounting interface ensures quick exchanges within existing fixtures, reducing downtime and maintaining consistent results across parts and assemblies. Ideal for aerospace, automotive, and precision manufacturing environments where bore accuracy and undercut verification are critical.