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

Benefit from hardened chromium steel and 0.003 mm accuracy to secure repeatable, high-precision reference points in inspection and setting tasks. Order the gauge ball pair directly via Metav Werkzeuge or ask our consultants if needed.

Precision gauge ball pair M318.426 — 16 mm, 0.003 mm accuracy (Metav IndustryLine)

A precision gauge ball pair for calibration, fixture set-up and comparative measurement in industrial metrology.

• Hardened chromium steel > HRC 62
• 16 mm diameter with 0.003 mm accuracy
• Diameter tolerance 0.00008 mm
• Set of two precision gauge balls

Consistent, repeatable reference for measurement and set-up

The pair of precision gauge balls provides a stable and repeatable reference that reduces setup variability in jigging, fixture alignment and comparative checks. With a 0.003 mm nominal accuracy and a diameter tolerance of 0.00008 mm, these spheres act as trusted reference points when establishing datum locations or checking roundness and runout. The tight tolerances translate into fewer adjustment cycles on the machine and a more efficient inspection routine.

Material strength and surface quality for long service life

Manufactured from hardened chromium steel with hardness above HRC 62, the balls combine wear resistance with dimensional stability. The exceptionally smooth surface (listed roughness 0.00001) minimises micro-variation at contact points, helping to preserve geometry under repeated contact with fixtures, pins or probes. The robust material and finish therefore support sustained accuracy over many cycles, lowering the need for frequent replacement.

Compact, practical set for workshop and laboratory use

Delivered as a set of two, the pair is suited for use as matched reference spheres in comparative setups and for verifying spherical seats or gauge adapters. The 16 mm diameter is a common workshop size that balances accessibility with stiffness at the contact interface, enabling stable handling and simple integration into existing gauges or setups. The total mass per set is low, facilitating easy placement and repositioning during multi-point checks.

Quality cues that speed up decision-making

The product’s clear specification of diameter, accuracy, tolerance and hardness allows procurement and quality teams to assess fit for purpose rapidly. For measurement engineers who value traceable, repeatable results, these numerical specifications provide the factual basis to compare alternatives and standardise tooling across production cells. The compact data sheet simplifies inventory decisions and reduces downtime caused by unclear component performance.

For precision reference points from Metav IndustryLine, contact Metav Werkzeuge for purchasing and application advice — Metav Werkzeuge can assist with selection and delivery directly from Emmerich.

Technical data

• Article number: M318.426
• GTIN: 4054469184142
• Set: 2 pieces
• Material: Hardened chromium steel
• Diameter: 16 mm
• Accuracy: 0.003 mm
• Weight (per set): 0.08 kg
• Hardness: > HRC 62
• Tolerance (diameter): 0.00008 mm
• Surface roughness: 0.00001

Numbers / Core technical data

• Diameter: 16 mm
• Accuracy: 0.003 mm
• Diameter tolerance: 0.00008 mm
• Surface roughness: 0.00001
• Hardness: > HRC 62
• Weight: 0.08 kg
• Pieces per set: 2

Special features / Applications

• Precision gauge balls for reference and comparison
• Matched pair for paired datum and fixture checks
• High hardness for wear resistance
• Smooth surface finish for reliable contact geometry

FAQ

What material are the gauge balls made from? The gauge ball pair (Metav IndustryLine, SKU M318.426) is made from hardened chromium steel, chosen for wear resistance and dimensional stability.

What level of accuracy can be expected from these spheres? The product offers 0.003 mm accuracy with a diameter tolerance of 0.00008 mm, making the pair suitable for high-precision reference and comparative measurements.

Are these balls supplied as a matched set? Yes, the item is supplied as a set of two matched precision gauge balls for paired datum and fixture applications.

What applications suit these precision gauge balls? Typical uses include calibration references, fixture alignment, comparative gauge checks and situations that require stable contact points for metrology tasks.

What information is available to help choose between sizes or grades? The technical data (diameter, accuracy, hardness and surface roughness) provides an objective basis to compare the gauge ball pair M318.426 against alternative components when specifying reference elements for inspection workflows.

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