10 mm Gauge Ball Pair Hardened Chrome Steel 0.003 mm Accuracy, Tolerance Ø0.00008 mm - Metav IndustryLine

Take advantage of exceptional measuring precision, robust hardened chrome-steel construction and a compact 10 mm diameter for reliable reference measurements; order the gauge ball pair directly via Metav Werkzeuge or contact our consultants for advice on application and integration.

Gauge ball pair M318.420 — 10 mm, hardened chrome steel, 0.003 mm accuracy

A gauge ball pair for high-precision inspection and reference tasks in measurement and tooling applications, supplied as a matched two-piece set.

• 0.003 mm measurement accuracy
• Hardened chrome steel construction
• Diameter tolerance 0.00008 mm
• Supplied as a matched two-piece set

Precision wherever reference matters

The matched 10 mm spheres deliver a repeatable reference standard suitable for gauging, runout checks and calibration fixtures. With a certified accuracy of 0.003 mm and a diameter tolerance of 0.00008 mm, these spheres provide a measurable reduction in systematic error when used as contact points or datum artefacts. The extremely low surface roughness (0.00001 µm) supports consistent contact geometry and reduces measurement scatter, which translates directly into fewer reworks and more reliable process control.

Durable material for sustained repeatability

Made from hardened chrome steel and specified at >HRC 62, the balls combine wear resistance with stable geometry under normal inspection loads. This hardness level minimises deformation at contact points and preserves dimensional integrity during repeated use. The compact mass (approx. 0.05 kg per set) and matched pairing simplify handling during fixture set-up and allow quick integration into existing test routines without adding appreciable inertia to delicate assemblies.

Built for inspection workflows and setup convenience

Supplied as a precise pair, the spheres are ideal for establishing local datums, checking spindle or chuck runout and serving as reference contacts in jigs and test rigs. The matched nature of the pair reduces uncertainty when comparing two points or transferring a reference between devices. These features support faster quality-control cycles and clearer pass/fail decisions in production environments, helping to maintain throughput without compromising measurement integrity.

Secure the M318.420 gauge ball pair from Metav Werkzeuge for assured measurement consistency and specification matching—Metav’s specialists in Emmerich will assist with application guidance and delivery options.

Technical data

• Article number: M318.420
• GTIN: 4054469184081
• ECLASS: 21170133

Numbers / Core data

• Diameter: 10 mm
• Accuracy: 0.003 mm
• Diameter tolerance: 0.00008 mm
• Surface roughness: 0.00001 µm
• Hardness: >HRC 62
• Weight (set): 0.05 kg

Special features

• Material: hardened chrome steel
• Supplied as a matched two-piece set
• Intended for reference and inspection tasks
• Category: gauges / inspection

FAQ

What inspection tasks are these gauge balls suitable for?
The gauge ball pair M318.420 is intended for reference measurements, runout checks and datum establishment in inspection and tooling applications.

Are the spheres supplied as matched pieces?
Yes, the set is supplied as a matched two-piece set to ensure consistent comparative measurements and reduced setup error.

What material are the balls made from and how hard are they?
The spheres are manufactured from hardened chrome steel with a hardness specification of greater than HRC 62.

How precise is the 10 mm diameter specification?
The 10 mm diameter is held to an accuracy of 0.003 mm with a diameter tolerance of 0.00008 mm, suitable for high-precision reference usage.

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