The ITP Straight Styli Type A with Ruby Ball is a precision, straight-contact stylus designed for demanding measurement tasks. Built for engineers and technicians who rely on repeatable, high-accuracy probing, it pairs a rigid carbide stem with a premium ruby ball for dependable results on small features.

• Part Number: THM501510040
• Thread: M5 thread compatible with standard probe heads
• Overall Length: 40.75 mm
• Stem Material: Carbide for exceptional rigidity and minimal deflection
• Ruby Ball Size Range: Diameters from Ø0.7 mm to Ø3.0 mm
• Ball Material: Ruby, offering hardness and wear resistance
• Design: Straight stylus profile for predictable contact and repeatability
• Custom Sizing: Other sizes available on request via configurator or by email

With its carbide stem and ruby ball, this stylus delivers stable, repeatable measurements across a wide range of features. The high-hardness ruby ball minimizes wear and maintains accurate contact geometry over time, while the carbide core reduces deflection under load—translating to tighter tolerances and more reliable inspection data. The 40.75 mm length offers practical reach for accessing recessed features, edges, and fine details without compromising stability. This makes it ideal for CMM probing, toolmaking, and precision metrology tasks where consistent, high-quality readings matter.