3 mm Gauge Ball Pair, Hardened Chrome Steel, Diameter Tolerance 0.00008 mm, Accuracy 0.003 mm - Metav IndustryLine

Take advantage of the combination of high hardness, sub-micron surface finish and tight dimensional tolerance for consistently repeatable reference measurements; order the pair directly via Metav Werkzeuge or contact our consultants for application advice.

Precision gauge ball pair M318.413 — Chrome steel, 3 mm, 0.003 mm accuracy (Metav IndustryLine)

A precision gauge ball pair crafted for reference measurements and fixture alignment in metrology, offering 3 mm diameter and 0.003 mm accuracy in a hardened chrome steel set.

• Hardened chrome steel, > HRC 62
• Diameter 3 mm, tolerance 0.00008 mm
• Accuracy 0.003 mm for precision gauging
• Set of two gauge balls for paired measurements

Reliable reference geometry for high-precision inspection

The pair serves as a stable reference element where dimensional certainty matters. With a nominal diameter of 3 mm and a stated accuracy of 0.003 mm, these balls deliver repeatable contact points for calibration jigs, comparator setups and fixture verification. The combination of hardened chrome steel and a measured surface roughness of 0.00001 minimises wear and contact variability, which preserves measurement integrity over repeated cycles. This characteristic reduces rework and contributes directly to process efficiency in inspection routines.

Designed for integration into metrology workflows

Supplied as a set of two, the pair is intended for comparative and paired-measurement tasks, easing alignment and averaging strategies in gauge blocks, ring gauges or bespoke fixtures. The extremely tight diameter tolerance of 0.00008 mm supports matched-pair applications where differential errors must be negligible. Lightweight construction (approx. 0.05 kg per set) and compact geometry simplify handling and placement in fine fixtures, while the high hardness rating (> HRC 62) ensures resistance to deformation under normal contact pressures used in standard gauging procedures.

Minimal maintenance, maximum confidence

Surface quality and material choice mean the components require only basic care to retain reference accuracy: clean contact surfaces, avoid corrosive environments and store the pair in a dry, padded container when idle. The durable finish and hardened core extend service life, providing a dependable reference for shop-floor and laboratory environments alike. Confidence in results is supported by measurable specifications rather than subjective claims, delivering an evidence-based tool for quality assurance and process control.

For specification advice or to secure the Metav IndustryLine precision gauge ball pair (SKU M318.413) for production use, contact Metav Werkzeuge — our consultants will assist with selection and delivery to your workshop.

Technical data

• SKU: M318.413
• GTIN: 4054469184012
• Material: Chrome steel, hardened
• Set: 2 pieces

Facts

• Diameter: 3 mm
• Accuracy: 0.003 mm
• Diameter tolerance: 0.00008 mm
• Surface roughness: 0.00001
• Hardness: > HRC 62
• Weight: 0.05 kg

Special features

• High surface finish for consistent contact
• Paired configuration for comparative gauging
• Intended use: Gauging / metrology

FAQ

Are these gauge balls supplied as a matched pair?
Yes. The precision gauge ball pair is supplied as a matched set of two pieces (SKU M318.413) for paired measurements and fixture alignment.

What environments are suitable for these chrome steel balls?
The gauge ball pair is intended for clean metrology and workshop environments; avoid prolonged exposure to corrosive media and store in a dry, cushioned container to maintain surface integrity.

How does the stated accuracy relate to typical inspection tasks?
An accuracy of 0.003 mm makes the pair suitable as a reference in high-resolution inspection, comparator work and fine fixture alignment where sub-thousandth millimetre repeatability is required.

Will the balls resist deformation under repeated contact?
Yes. The hardened chrome steel construction with hardness > HRC 62 provides strong resistance to indentation and wear under standard gauging contact pressures.

Can these balls be used with optical or tactile comparators?
Yes. The defined geometry and surface finish make the set compatible with both tactile probing and optical reference checks in metrology setups.

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