100 mm Extension for Three-Point Internal Measuring Probes 6–8, 8–10, 10–12 mm, M5 Thread - Metav IndustryLine

Take advantage of extended reach, secure M5 mounting and a slim 5.7 mm shank to measure deep bores with confidence; the extension combines compatibility across the 6–12 mm three‑point ranges with robust construction for repeatable results. Order the accessory directly via Metav Werkzeuge or consult the Metav specialists for application advice.

Extension for three‑point internal micrometer M312.103 — 100 mm, compatible with 6–12 mm (Metav IndustryLine)

The Extension for three‑point internal micrometer is an accessory designed to extend the reach of three‑point internal measuring instruments for deep or narrow bore applications, improving access without compromising contact reliability

• 100 mm extension length
• Compatible with 6–12 mm three‑point sets
• M5 threaded connection
• Shank Ø 5.7 mm for narrow bores

Extended reach for precise internal measurement

The accessory provides a 100 mm extension designed specifically for three‑point internal measuring tools and catapults standard measuring ranges into deeper cavities. With a slender Ø 5.7 mm shank and compatibility for the 6–8 mm, 8–10 mm and 10–12 mm measuring sets, the extension enables inspection of recessed bores and stepped interiors that would otherwise require disassembly or special fixturing. By reducing handling and repositioning, the attachment supports more efficient inspection cycles and fewer interruptions to production flow.

Secure mounting and consistent contact for repeatability

A dedicated M5 thread ensures a firm connection to the measuring head and prevents play that could degrade readings. The design focuses on mechanical stability so that the measuring points maintain consistent contact geometry during insertion and withdrawal, delivering repeatable measurements across multiple parts. The combination of precise fit and robust attachment reduces measurement variability, supporting quality-control processes that prioritise reliability and traceability.

Workshop integration and application advantages

As an accessory for three‑point internal micrometers, this extension is straightforward to fit and does not alter the instrument’s measuring principle; the extension merely increases reach while preserving the original contact behaviour. The compact shank diameter and standard thread make it suitable for use in toolrooms, production inspection and retrofit situations where extending capability is more cost‑effective than acquiring a separate long‑reach instrument. Metav IndustryLine’s supply and distribution network ensures rapid availability for continuity in metrology workflows.

Contact Metav Werkzeuge today to secure the M312.103 extension for extended internal measurements — Metav Werkzeuge GmbH can advise on compatibility and delivery at +49 2822 7131930 or info@metav-werkzeuge.com

Technical data

• Article number: M312.103
• GTIN: 4054469119342
• ECLASS: 21019104
• ETIM: EC002219
• Category: Accessory for measuring instruments

Facts

• Length: 100 mm
• Shank diameter: Ø 5.7 mm
• Thread: M5
• Weight: 1.3 kg
• Tariff number: 90173000

Special features

• Compatible with three‑point internal micrometer ranges 6–8, 8–10, 10–12 mm
• Extension type: for three‑point internal measuring instruments
• SKU: M312.103
• Intended use: deep or narrow bore internal measurements

FAQ

Which three‑point sets are compatible with this extension?
The extension is compatible with three‑point internal micrometer measuring ranges 6–8 mm, 8–10 mm and 10–12 mm, as specified for the M312.103 accessory.

How is the extension attached to the measuring head?
Attachment is via an M5 thread; the threaded connection provides a secure fit and maintains the contact geometry of the measuring instrument.

What are the physical dimensions relevant for tight bores?
The extension measures 100 mm in length and has a shank diameter of Ø 5.7 mm, allowing access into narrow or recessed internal features.

Is the extension intended to alter measurement behaviour of the micrometer?
No — the extension increases reach while preserving the original three‑point contact principle; it is an accessory to extend application range rather than to change measurement methodology.

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