2 mm Gauge Ball Pair, Hardened Chrome Steel 0.003 mm Accuracy, Pair - Metav IndustryLine

Take advantage of a compact, hardened chrome‑steel gauge ball pair with Ø 2.00 mm and 0.003 mm nominal accuracy to secure reproducible reference points in gauges and fixtures; its high hardness (> HRC 62) and fine surface finish support long service life and stable results. Order directly via Metav Werkzeuge or consult our specialists for specification matching.

Gauge Ball Pair M318.412 — Hardened chrome steel, Ø 2.00 mm, 0.003 mm accuracy (Metav IndustryLine)

A gauge ball pair intended as a high‑precision spherical reference for calibration, gauge setting and metrology applications in workshops and inspection labs

• Hardened chrome steel construction
• Precise Ø 2.00 mm diameter
• Nominal accuracy 0.003 mm
• Hardness > HRC 62, ultra‑fine surface

Reliable reference for precision measurement

Spherical references are fundamental when establishing repeatable contact points in gauges and inspection fixtures. These gauge spheres deliver a stated accuracy of 0.003 mm, which identifies the maximum permissible deviation from the nominal diameter for reference usage. The Ø 2.00 mm size provides a compact contact area that is ideal for micro‑components and dense fixture arrays where clearance is limited. In practice, the tight diameter tolerance of 0.00008 mm helps minimise measurement uncertainty when aligning instruments or checking master gauges, translating directly into fewer reworks and higher throughput for quality control processes.

Built for durability and repeatability

Constructed from hardened chrome steel, the balls combine mechanical strength with a fine surface finish to resist wear and preserve geometry over many inspection cycles. The declared hardness > HRC 62 increases abrasion resistance under repeated contact and reduces the risk of plastic deformation that might otherwise alter the reference radius. A very low surface irregularity (surface roughness 0.00001) reduces contact friction and ensures consistent probe readings. Together these characteristics support repeatable measurements and extend the service interval of the reference elements used in jigs, plug gauges and measurement benches.

Practical applications and system integration

Designed as a precision accessory for gauge manufacturing and workshop metrology, the spheres are supplied as a set of two to support comparative checks, master‑to‑workpiece alignment and fixture calibration. Typical applications include setting comparator mandrels, creating reference points for coordinate measuring procedures and validating miniature contact probes. Their compact form factor makes them suitable for confined setups on fixtures and small assemblies where larger reference elements would impede accessibility. The product’s specification and material choice make it a robust option for industrial routine inspection tasks as well as laboratory reference use.

For precise spherical references from Metav IndustryLine, contact Metav Werkzeuge in Emmerich for tailored procurement and application advice to match the M318.412 to specific inspection requirements.

Technical data

• Article number: M318.412
• GTIN: 4054469184005
• Description: Gauge ball pair, hardened chrome steel

Data

• Diameter: 2.00 mm
• Nominal accuracy: 0.003 mm
• Diameter tolerance: 0.00008 mm
• Surface roughness: 0.00001
• Hardness: > HRC 62
• Weight: 0.05 kg

Special features

• Supplied as a set of two spheres
• Material: hardened chrome steel
• Very fine finish for low friction contact
• Suitable for precision gauge and fixture references

FAQ

Are these gauge balls suitable for calibration and master checks?
The gauge ball pair M318.412 is specified for use as precision reference spheres in calibration and master checks; the 0.003 mm nominal accuracy and tight diameter tolerance support reproducible reference measurements.

Is a calibration certificate included with delivery?
No ISO 17025 calibration or specific certificate is stated for this item; the balls are manufactured to the quoted tolerances. If a traceable calibration certificate is required, request clarification prior to purchase.

What advantages does the hardened chrome steel offer?
Hardened chrome steel provides high wear resistance and dimensional stability; with hardness > HRC 62 and a fine surface finish, the spheres maintain geometry under repeated contact and deliver consistent probe responses.

How should the spheres be used in an inspection setup?
Use the supplied pair to establish repeatable contact points for gauge setting, comparator references or to validate probe performance on small fixtures; their Ø 2.00 mm size suits confined measurement areas.

What does the tolerance of 0.00008 mm mean in practice?
The diameter tolerance of 0.00008 mm defines the allowable deviation from the nominal diameter; in practice this limits the contribution of the sphere to overall measurement uncertainty when used as a reference.

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