ITP Straight Stylus Type A with a ruby ball is a precision probing accessory designed for standard measurement tasks. Built for reliability, it combines a carbide stem with a high-quality ruby contact ball to deliver repeatable touchpoints in compatible probing systems.

• Thread: M3 threaded mounting fits common probe interfaces.
• Overall Length: 30.75 mm to reach tight spaces without compromising accuracy.
• Stem Material: Carbide stem for extreme rigidity and stable measurements.
• Ruby Ball Diameters: available in sizes from Ø0.5 mm to Ø6.0 mm, using high-quality ruby for wear resistance and smooth contact.
• Design: Straight stylus (Type A) for consistent contact geometry in everyday probing tasks.
• Part Number: THM301504031
• Customization: Further ruby-ball sizes can be requested via the configurator or by email.

When used with coordinate measuring machines (CMMs) and other probing systems, this stylus minimizes deflection and maintains stable contact across measurements, improving repeatability and reducing drift. The carbide stem resists flex under load, while the ruby ball’s hardness reduces wear and preserves a smooth, repeatable signal across cycles. The 30.75 mm length offers practical reach for standard setups, and the M3 thread ensures quick, secure installation with minimal tools. The ability to select ruby-ball diameters from 0.5 mm to 6.0 mm provides flexibility to match the feature size on your parts, from fine grooves to broader surfaces. If your workflow requires a non-standard size, sizes can be requested through the configurator or by email.