50mm Extension Rod For Dial Indicators With 4mm Measuring Pin - Käfer Messuhrenfabrik GmbH & Co. KG

Take advantage of a compact, precision-focused solution that extends the reach of dial gauges while keeping setup simple; the short 50 mm length and 4 mm measuring pin ensure reliable contact in confined measuring situations. Order the extension directly via Metav Werkzeuge or ask the Metav consultants for application advice.

Extension piece L 50 mm — Extension for dial gauges, 4 mm measuring pin (KÄFER)

The extension piece L 50 mm offers straightforward reach extension for dial gauges in confined or recessed measuring positions, designed as an accessory for standard workshop inspection setups

• 50 mm extension for confined access
• 4 mm measuring pin diameter for standard fits
• For use with dial gauges and dial indicators
• Single-piece supply, packaging unit 1

Access recessed features with consistent contact

A short, rigid extension piece provides predictable probe reach where direct access is restricted. The 50 mm length increases the distance between the gauge body and the contact point, allowing measurements inside bores, slots or behind fixtures without repositioning the instrument. This avoids repeated set-ups and reduces cycle time in repetitive inspections. The compact design keeps the probe geometry stable, which helps to maintain measurement repeatability even in tight assemblies.

Compatibility explained: what the measuring pin diameter means

The 4 mm measuring pin denotes the diameter of the contact stem and determines mechanical fit with gauge sockets and holders. A standard 4 mm measuring pin ensures secure seating in many common dial gauge attachments and universal clamps, preventing lateral play that would degrade results. For users less familiar with these dimensions: the pin diameter is the interface dimension that carries the measurement force to the contact point; correct matching reduces measurement uncertainty and supports reliable comparison readings.

Practical benefits for the workshop and inspection bench

Delivered as a single item with SKU 4000851691NW, this accessory is a concise stock item for toolrooms, service departments and inspection benches that value low inventory complexity. Its role as an accessory for dial gauges simplifies parts management — a short extension avoids the need for longer, bulkier adapters when only modest reach is required. Where traceable processes are important, the simple geometry makes calibration checks and functional inspections quicker to perform and document.

Contact Metav Werkzeuge for precise application advice and availability; technical consultants are available from the Emmerich location and can confirm fitment and lead times by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number / SKU: 4000851691NW
• Label: Verlängerungsstück L.50mm Messbolzen-D.4mm z.Messuhren KÄFER
• Product type: Verlängerungsstück
• Execution: Verlängerungsstücke für Messuhren

Specifications

• Length: 50 mm
• Measuring pin diameter: 4 mm
• Packaging unit: 1

Features

• Designed for dial gauges / dial indicators
• Short extension for confined access
• Single-piece accessory for routine inspection use

FAQ

What is the measuring pin diameter of this extension piece?
The extension piece is supplied with a 4 mm measuring pin, which is the interface diameter for attaching to compatible dial gauge sockets and holders.

Will this part fit standard dial gauges and indicators?
Compatibility is intended for dial gauges with matching pin receptacles; the extension piece L 50 mm from KÄFER is designed for common workshop gauge fittings and works with many standard indicator clamps.

How does using the extension affect measurement accuracy?
An accurately matched extension minimises lateral play; because the 4 mm measuring pin provides a secure fit, measurement repeatability is maintained when the probe geometry remains stable during each reading.

Is this extension suitable for routine inspection benches and jigs?
Yes. Supplied as a compact single item (SKU 4000851691NW), it is suited to inspection benches and jigs where a modest reach extension is required without introducing complex adapters.

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