19.81mm Gauge Pin 50mm Length Workshop Version, Special Steel - Metav IndustryLine

Take advantage of the combination of exact nominal dimension, workshop-hardened construction and traceable identification for reliable bore checks and end-measure verification. Benefit from a compact, precision component that complements inspection routines and can be ordered directly via Metav Werkzeuge or discussed with our technical consultants.

Gauge pin M323.J81 — workshop-grade gauge pin, 19.81 mm Ø, 50 mm length (Metav IndustryLine)

The gauge pin M323.J81 is a single precision inspection pin designed for secure verification of bores and fits in workshop inspection and assembly environments.

• Precision tolerance ±0.002 mm
• Exact nominal diameter 19.81 mm
• 50 mm hardened length for stable engagement
• Workshop-grade special steel construction

Reliable checks where tolerance matters

The compact inspection pin delivers consistent dimensional reference thanks to its ±0.002 mm manufacturing tolerance and exact 19.81 mm nominal diameter. For workshop quality control this level of precision reduces measurement uncertainty during fit checks and end-measure verification, enabling repeatable go/no-go assessment when used alongside conventional gauging methods. The numeric tolerance is suitable for high-accuracy mechanical assemblies where small deviations can affect assembly or function.

Built for frequent handling and shop use

Constructed in special steel with a workshop-grade finish, the pin resists wear while preserving its measuring surface. The 50 mm engagement length gives a secure contact area that helps to avoid tilting or partial insertion during inspections. Combined with a modest mass of 0.2 kg, the component balances robustness with manoeuvrability on the bench or in a measuring fixture, reducing handling fatigue during repetitive checks.

Fast integration into existing inspection routines

As a single inspection element, the component slips into established workflows without additional calibration requirements beyond standard shop practice. Its precise nominal dimension makes it suitable as a reference for plug checks, fixture setting and end‑measure comparison. Where traceable identification is required, the article is listed under the SKU and GTIN for inventory control and process documentation.

Traceability and identification for production control

Each item is identifiable by its designation and catalogue reference, supporting clear documentation in inspection records and part lists. The combination of a defined nominal size and a tight tolerance supports traceable quality assurance and easier communication between workshop teams and purchasing, helping to standardise bore-verification procedures across shifts and sites.

Practical handling advice to preserve accuracy

To maintain the specified tolerance, keep measuring surfaces clean and free from burrs or corrosion; avoid forceful impacts that could deform the contact diameter. A gentle wipe and storage in a clean rack minimise contamination and preserve repeatability. The pin’s compact format makes it easy to include in standard tool kits for fixture setup or incoming inspection.

Typical applications and compatibility

This inspection element is intended for bore and fit control in general machine building, jigs and fixtures, and assembly verification. Its nominal size and tolerance suit fine mechanical assemblies and workshop-level quality control where compact, reliable reference pins are required.

Contact Metav Werkzeuge today to order the Metav IndustryLine M323.J81 gauge pin or request application advice from our specialists

Technical data

• Article number: M323.J81
• Label: Gauge pin, single, 19.81 mm diameter, 50 mm length
• GTIN: 4061905072468

Facts

• Diameter: 19.81 mm
• Length: 50 mm
• Tolerance: ±0.002 mm
• Weight: 0.2 kg

Special features

• Material: special steel
• Designation: workshop-grade execution
• Category: Messstifte (gauge pins)
• Accuracy class: ±0.002

FAQ

What is the nominal diameter and tolerance of this gauge pin? The gauge pin has a nominal diameter of 19.81 mm and is manufactured to a tolerance of ±0.002 mm, providing a stable reference for bore verification.

Can the M323.J81 be used for fixture setup and assembly checks? Yes, the M323.J81 from Metav IndustryLine is suitable for fixture setting and assembly verification where a compact, precise reference pin is required.

How should the gauge pin be stored to maintain accuracy? Store the pin clean and dry, avoid impacts and contamination; regular inspection and gentle cleaning help preserve the specified tolerance and surface condition.

Is the material specified for wear resistance in shop environments? The pin is made from special steel with a workshop-grade finish, offering a balance of wear resistance and stable contact properties for frequent use.

How is the part identified in documentation and inventory? Identification is provided via the article number M323.J81 and GTIN 4061905072468 for clear traceability in records and stock systems.

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