The ITP Straight Styli Type A with Silicon Nitride Ball is a precision probing stylus designed for everyday metrology tasks. With a compact M5 thread, 28.75 mm overall length, and part number THM5S1512028, it delivers reliable performance on metal parts, including aluminium.

• Thread: M5 thread for secure attachment to compatible probes.
• Overall length: 28.75 mm overall length for flexible reach in tight measurement setups.
• Stem material: Extremely rigid carbide stem providing outstanding stability across a wide range of dimensions.
• Ball material: Silicon nitride ball, offering high hardness and wear resistance—particularly effective when scanning untreated aluminium parts.
• Ball size range (group): Ball sizes from Ø1.5 mm to Ø10.0 mm are available in this group; other sizes can be requested via configurator or by email.
• Holder options (group): Styli compatible with Ø10.0 mm, Ø11.0 mm and Ø12.0 mm holders available in this group.
• Product code: THM5S1512028
• Intended use: Straight stylus designed for everyday standard metrology tasks.

This design pairs a carbide stem with a silicon nitride ball to deliver repeatable measurements and long-lasting performance. The M5 mounting thread enables quick swaps in and out of probes, while the 28.75 mm length provides good clearance in compact fixtures and more expansive setups alike. The silicon nitride ball is especially advantageous for scanning untreated aluminium surfaces, helping sustain accuracy and reduce wear over time. Whether you’re assembling a measurement workflow or upgrading existing probes, this Type A stylus offers reliable, straightforward performance across common metrology applications.