11.8mm Ball Precision Contact Tip Ruby, For K30/K31/K32/K46 Models - Käfer Messuhrenfabrik GmbH & Co. KG

Take advantage of a compact measuring solution that combines ruby hardness with a fine 2 mm ball tip for consistent tactile feedback; the insert offers compatibility with standard Käfer gauge heads and simple replacement through Metav Werkzeuge for uninterrupted production.

Käfer measuring insert — ruby ball probe, Ø 2 mm, L 11.8 mm

The Käfer measuring insert is a ball‑shaped ruby probe tip designed for tactile measuring heads, providing precise contact measurement in bench and shop‑floor applications

• Ball-shaped ruby tip for precise contact
• 2 mm diameter for fine probing tasks
• 11.8 mm shaft length for standard gauges
• Compatible with K30, K31, K32, K46 models

Reliable contact geometry for consistent measurement results

The ball‑shaped ruby tip with a 2 mm diameter ensures a small and reproducible contact area, which is essential when measuring fine features or delicate surfaces. Because the material maintains its shape under repeated contact, the result is consistent reproducibility and reduced measurement scatter; this enables operators to rely on stable reference readings without frequent recalibration. The tactile geometry also minimises indentation on softer parts, preserving component integrity while delivering exacting measurement data.

High wear resistance that extends service intervals

Rubies are used in metrology tips for their exceptional wear resistance and hardness, characteristics that directly translate to longer service life for the probe. The combination of a hard contact element and a short 11.8 mm shaft keeps the sensing point stable under normal measurement forces, reducing the need for frequent tip changes and decreasing downtime. As a result, maintenance cycles are extended and total cost of ownership is lowered for high‑volume inspection tasks.

Plug‑and‑play compatibility with common Käfer heads

Engineered for direct fitment to a range of Käfer heads, the insert lists explicit compatibility with K30, K31, K32 and K46 models. The standardised mounting form factor allows straightforward replacement without special tools, so measuring systems can be returned to service quickly. Clear model compatibility reduces selection errors and supports inventory planning for calibration and spare parts management.

Intended use and handling for reliable measurement workflows

This measuring component is intended for tactile probing tasks on precision instruments and is particularly suitable for controlled shop or laboratory environments. The compact ball tip design supports fine feature probing and repeatable contact detection, while the robust ruby material handles repeated use. For further technical clarification on fitment or suitability for specific gauges, the Metav technical team is available to supply additional data and guidance by email or phone.

For precise tactile measurements, select the Käfer ruby ball measuring insert (Ø 2 mm, L 11.8 mm) and contact Metav Werkzeuge for availability and compatibility advice at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number: 4000851375NW
• Description: Measuring insert, ball form, ruby
• Product type: Measuring insert
• SKU/UID: 4000851375NW

Facts

• Diameter: 2 mm
• Length: 11.8 mm
• Packaging unit: 1

Special features

• Material: ruby
• Form: ball
• Compatible models: K30, K31, K32, K46
• Suitable for tactile measuring heads

FAQ

What material is the probe tip made from?
The probe tip is made from ruby, chosen for high hardness and long wear resistance in the Käfer measuring insert (SKU 4000851375NW).

Which diameter does the measuring ball have?
The measuring ball has a 2 mm diameter, offering a small contact area for precise tactile measurements.

Is this insert compatible with Käfer gauge heads?
Yes, the insert is designed for direct compatibility with K30, K31, K32 and K46 Käfer heads, ensuring straightforward replacement and reliable fitment.

What is the shaft length and why does it matter?
The shaft length is 11.8 mm, a dimension that balances accessibility to features with stability during measurement to reduce deflection and maintain accuracy.

How does the ruby material affect maintenance intervals?
Ruby provides enhanced wear resistance, which typically reduces the frequency of tip replacement and extends maintenance intervals for measuring setups using this type of insert.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com