The ITP Straight Styli Type A with a silicon nitride ball is a precision straight stylus designed for CMM probing and metrology workflows. Built for professionals who demand reliable, lightweight performance when inspecting metallic parts, including untreated aluminium.

• Ball diameter options: Ball sizes in this product group range from Ø5.0 mm to Ø10.0 mm; other sizes can be requested via configurator or by email.
• Stem material: High-performance ceramic stem that is exceptionally light yet rigid.
• Ball material: Silicon nitride ball delivers wear resistance and smooth contact with workpieces.
• Thread: M5 threaded connection for secure attachment to standard probe heads.
• Length: 94 mm overall length to reach features while preserving stability.
• Design: Straight stylus geometry optimized for everyday standard use.

The combination of a light, stiff ceramic stem and a durable silicon nitride ball means precise, repeatable measurements with minimal deflection, even on challenging aluminium surfaces. The 94 mm length provides comfortable reach for mid- to deep-feature measurements, while the M5 thread ensures compatibility with common probing systems. This stylus is ideal for routine inspection, setup verification, and calibration tasks in metalworking environments where untreated aluminium is common. By choosing a silicon nitride ball, you reduce wear and scoring on soft metals, helping to extend stylus life and maintain measurement accuracy over time.