325mm Setting Gauge For Micrometer With Thermal Shield, Ball Tips, Accuracy ±0.004mm - Metav IndustryLine

Benefit from a 325 mm nominal length combined with thermal protection and a ±0.004 mm accuracy for reproducible micrometer settings; order the gauge directly via Metav Werkzeuge or consult our specialists for application advice.

Micrometer Setting Gauge M304.320.2 – Setting standard for external micrometers, 325 mm, ±0.004 mm (Metav IndustryLine)

A Micrometer Setting Gauge M304.320.2 designed as a workshop reference for precise calibration and setting of external micrometer heads in production and quality-control environments.

• Accuracy ±0.004 mm
• Nominal length 325 mm (medium range)
• Thermal protection for stable readings
• Spherical measuring faces for repeatable contact

Consistent reference for medium-range micrometer work

A purpose-built setting standard supplies a reliable reference when calibrating or setting external micrometer heads. The M304.320.2 offers a nominal length of 325 mm, placing it in the medium range (300–500 mm) that balances reach and stiffness for larger assemblies. With a measured accuracy of ±0.004 mm, the gauge reduces uncertainty during setup and supports repeatable readings across a production run. The construction prioritises dimensional stability so that the reference value remains a stable baseline for tool adjustment and process checks.

Stable measurements through temperature control and contact geometry

Temperature fluctuations are a common source of measurement drift; this setting standard includes thermal protection, which mitigates rapid heat transfer and helps maintain consistent dimensions during use. Combined with spherical measuring faces, the contact geometry promotes constant point contact under the micrometer anvils, lowering the influence of slight misalignment or surface irregularities. These design details translate into clearer pass/fail decisions at the workshop bench and fewer rework cycles — a tangible efficiency gain in everyday metrology tasks.

Practical workshop integration and traceable documentation

The gauge’s compact mass and clear nominal dimension make it simple to incorporate into a calibration routine or a setting station. The device is categorised as an accessory suitable for micrometer adjustment and is supplied with identifiable markings (SKU M304.320.2 and GTIN 4054469116716) to support inventory and traceability. Lightweight handling reduces operator fatigue while the dimensional specification (including a contact diameter of 16 mm) is suitable for standard external micrometer anvils. For organisations that require documented references, this setting standard serves as a stable in‑house baseline, aiding consistent quality control across shifts and machines.

For precise micrometer setups with the Metav IndustryLine setting gauge, contact Metav Werkzeuge in Emmerich for tailored advice and reliable supply directly from our European hub.

Technical data

• Article number: M304.320.2
• GTIN: 4054469116716
• Tariff number: 90173000

Core specifications

• Nominal length: 325 mm
• Accuracy: ±0.004 mm
• Diameter (contact): 16 mm
• Weight: 0.6 kg

Special features

• Thermal protection
• Spherical measuring faces
• Intended for micrometer setting
• Category: Accessory

FAQ

What is the nominal size and intended use of the gauge?
The setting standard has a nominal length of 325 mm and is intended as a reference for adjusting and checking external micrometer heads in workshop and quality-control settings.

How accurate is the reference and what does that mean for daily use?
The gauge delivers an accuracy of ±0.004 mm, which supports repeatable micrometer settings and reduces measurement uncertainty during routine adjustments with the M304.320.2.

Are the measuring faces suitable for standard micrometer anvils?
Yes, the device has spherical measuring faces optimised for consistent contact with external micrometer anvils and a contact diameter of 16 mm for stable engagement.

Can the setting gauge be used for larger assemblies?
Classified as medium range, the 325 mm length bridges the gap between compact references and long‑reach standards, making it suitable for larger fixtures and assemblies where increased reach is required without sacrificing stiffness.

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