3.5mm Test Pin Single ±0.001mm Length 50mm Workshop Version - Metav IndustryLine

Take advantage of workshop-ready precision with a 3.50 mm gauge pin that delivers ±0.001 mm accuracy and a compact 50 mm length; the robust special-steel construction ensures repeatable end-dimension checks and is supplied in a protective transport case. Order directly via Metav Werkzeuge or request technical advice from our consultants.

Gauge pin M323.350 — precision test pin Ø 3.50 mm, ±0.001 mm (Metav IndustryLine)

The gauge pin M323.350 is a compact precision test pin for reliable end-dimension verification and go/no-go checks in workshop and assembly inspection tasks

• High-precision ±0.001 mm tolerance
• Solid special steel construction
• 50 mm usable length for end-dimension checks
• Delivered in protective transport case

Precise control for small diameters and critical fits

A compact test pin in the micro range, this tool is designed for measurements where tight clearances decide assembly quality. The ±0.001 mm tolerance provides a quantifiable basis for acceptance criteria, reducing interpretation between operators and speeding up decision-making in inspection routines. By specifying a defined diameter of 3.50 mm and a measured length of 50 mm, the pin enables direct comparison with nominal end dimensions and supports standardised pass/fail procedures. This clarity in measurement reduces rework and scrap, delivering a measurable improvement in process reliability.

Robust workshop design that tolerates daily use

Engineered as a workshop version, the pin combines a hardened special-steel body with a finish suited to regular handling and insertion cycles. The selected material resists ordinary wear while keeping the measurement surface stable under repeated use, which preserves dimensional integrity over many inspection cycles. The compact design and low mass make hand manoeuvring straightforward, while the firm edge geometry reduces the risk of jamming when checking hole seats or mating parts. The result is a tool that keeps inspection throughput high without compromising repeatability.

Practical handling, transport and storage for the workshop environment

Delivered in a protective transport case, the pin is ready for immediate integration into inspection kits and portable measuring sets. The case protects the calibrated diameter and bearing surfaces during storage and transit, so accuracy is maintained from the supplier to the point of use. The small footprint of the pin simplifies organisation in tool drawers and gauge sets, while the ruggedised supply format supports mobile quality checks on the shop floor or next to assembly stations. This practicality shortens setup time and helps workshops maintain consistent measurement routines.

Clear benefit: faster, reproducible acceptance decisions

By combining a defined diameter, sub-micron-level tolerance and workshop-grade construction, this test pin streamlines routine inspections and gauge checks. The pin is suitable for use in dimensional control, fixture setup and final acceptance checks where the specified end measurements are decisive. Fewer ambiguous results and quicker go/no-go outcomes translate into higher throughput and reduced production bottlenecks, particularly where small-diameter fits are frequent.

Request tailored technical advice or a supply proposal from Metav Werkzeuge GmbH for Metav IndustryLine gauge pins—contact +49 2822 7131930 or email info@metav-werkzeuge.com

Technical data

• Article number: M323.350
• GTIN: 4061905059100
• Manufacturer: Metav IndustryLine

Measurements & accuracy

• Diameter: 3.50 mm
• Length: 50 mm
• Tolerance: ±0.001 mm
• Weight: 0.006 kg

Special features

• Material: special steel
• Workshop version for regular use
• Supplied in a protective transport case
• ECLASS: 21170231
• Storytrigger: end-dimension checks

FAQ

What applications suit this gauge pin?
The gauge pin M323.350 is intended for end-dimension verification, go/no-go checks and fixture setup where a 3.50 mm diameter and tight tolerance are required; it is especially useful in workshops and assembly inspection.

Is the stated accuracy of ±0.001 mm maintained in daily workshop use?
When handled and stored in the supplied protective case and used for comparative checks, the pin maintains its ±0.001 mm accuracy; routine visual inspection of the bearing surfaces is recommended to ensure ongoing repeatability.

Can this pin be used for hole checking and assembly clearance testing?
Yes—this test pin is suitable for hole-seat verification and basic clearance testing in small-diameter fits, helping to confirm whether mating parts meet the specified end dimensions.

What material is the pin made from and why does that matter?
The pin is made from special steel, chosen for wear resistance and dimensional stability under repeated insertion cycles; this preserves the measurement surface and supports long-term reliability.

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