4.91mm Gauge Pin, ±0.001mm Accuracy, 50mm Length, Workshop Version, Special Steel - Metav IndustryLine

High-precision inspection for reliable go/no-go checks: the combination of a 4.91 mm diameter, ±0.001 mm tolerance and a 50 mm working length provides repeatable verification of end dimensions. Order this precision gauge pin directly via Metav Werkzeuge or consult our technical advisers for specification matching.

Precision gauge pin M323.491 — 4.91 mm, ±0.001 mm, 50 mm length (Metav IndustryLine)

The Precision gauge pin M323.491 is a workshop-grade, single inspection pin for end-dimension checks and high-resolution gauging tasks

• Workshop execution for robust use
• Diameter 4.91 mm for tight fits
• Tolerance ±0.001 mm for sub-micron control
• 50 mm length for deep-seat checks

Consistent results through measurable precision

Designed for high-repeatability inspection, this gauge pin delivers a guaranteed ±0.001 mm tolerance that reduces measurement uncertainty during routine checks. The extremely tight dimensional control makes it suitable for checking bores, locating features and verifying end measurements where lateral play must be minimised. Using a pin with such accuracy shortens decision loops in quality control and supports faster acceptance or rejection of batches, improving throughput without compromising traceability.

Durable design adapted to workshop environments

Manufactured in special steel and specified as a workshop version, the pin combines practical robustness with the surface quality required for accurate fits. A 50 mm length gives access to deeper seats while keeping handling comfortable for one-person inspection cycles. The modest 0.01 kg weight ensures the pin is easy to manoeuvre during series inspection, while the material choice balances wear resistance with the ability to be reworked or reground if refurbishment is required.

Seamless integration into inspection routines

This precision ground pin is intended for direct use in go/no-go testing, fixture verification and comparative gauging. Marked by its nominal 4.91 mm diameter, it fits existing analogue and digital checking procedures and can be recorded in quality documentation for traceable acceptance criteria. Where rapid decisions are essential, the pin’s reproducible geometry reduces operator-dependent variance and supports standardised inspection workflows across production shifts.

For workshop-ready precision from Metav IndustryLine, request availability or technical matching from Metav Werkzeuge GmbH in Emmerich; our consultants will advise on integration into existing inspection plans and delivery options

Technical data

• Article number: M323.491
• GTIN: 4061905058707
• Brand: Metav IndustryLine
• ECLASS: 21170231

Data

• Diameter: 4.91 mm
• Tolerance: ±0.001 mm
• Length: 50 mm
• Weight: 0.01 kg

Special features

• Material: special steel
• Version: workshop execution
• Intended use: end-dimension checks
• Supplied: single pin

FAQ

What level of dimensional accuracy does this pin provide?
The Metav IndustryLine precision gauge pin M323.491 is manufactured to a tolerance of ±0.001 mm, enabling fine acceptance checks and minimal measurement scatter in go/no-go and sizing applications.

Which applications are suitable for this inspection pin?
Typical uses include bore verification, locator checks, fixture validation and comparative gauging. The M323.491 is specified for end-dimension checks where a nominal 4.91 mm diameter and 50 mm length are required.

What material is the pin made from and how does that affect durability?
The pin is made of special steel, offering a balance between wear resistance and serviceability; this makes it appropriate for frequent workshop use and periodic refurbishment if needed.

How is the product supplied and identified?
The pin is supplied individually and identifiable by SKU M323.491 and GTIN 4061905058707 for inventory and traceability purposes.

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