150mm Three-Point Internal Measurement Extension Suitable For M312.146–M312.157, M312.256–M312.267 - Metav IndustryLine

Take advantage of increased measuring reach and dependable mechanical fit to extend the capability of existing three‑point internal measuring sets; the combination of a 150 mm extension and a Ø29 connection ensures smooth integration and reliable repeatability. Order the accessory directly via Metav Werkzeuge or consult our specialists for application advice.

Extension 150 mm for three‑point internal measuring — Metav IndustryLine accessory with Ø29 connection and universal series compatibility

The Extension 150 mm for three‑point internal measuring is an accessory designed to increase measurement reach for three‑point internal micrometers, compatible with series M312.146–153 and M312.256–267 for extended bore inspections

• 150 mm extension length
• Fits Ø29 connection diameter
• Compatible with M312.146–153 series
• Robust 0.5 kg extension body

Extend reach without compromising measurement integrity

The 150 mm extension converts standard three‑point internal micrometers into a practical solution for deeper bores while preserving repeatability and alignment. By adding a purpose‑made extension rather than improvising with improvised adapters, the measuring chain remains concentric and mechanically stable, which reduces radial runout and measurement scatter. This extension is engineered to interface cleanly with the matching three‑point systems, providing a measured increase in reach that is immediately available for production or inspection tasks without changes to established measurement procedures.

Seamless fit with existing three‑point systems for efficient workshop use

Designed for compatibility with the highlighted M312 series, the extension links directly to the matching heads, enabling quick assembly and minimal downtime. Its Ø29 connection diameter and standardised interface mean the accessory can be combined with several instrument variants from the same family, keeping handling and training simple. At 0.5 kg, the component is balanced for handheld setup yet substantial enough to preserve positional stability during insertion; this balance supports rapid changeovers and consistent results in routine quality control and maintenance cycles.

Built for robust handling and predictable inspection workflows

This accessory is intended for workshop environments where predictable, repeatable measurements matter. The mechanical design focuses on secure coupling and resistance to light impact or vibration that can occur during everyday use; the result is a component that helps maintain the integrity of the inspection process over many cycles. Choosing a factory‑matched extension reduces the need for makeshift solutions and supports traceable procedures, improving throughput while retaining confidence in measurement outcomes.

Contact Metav Werkzeuge for tailored advice on integrating the Metav IndustryLine M312.154 extension into existing three‑point internal measuring sets and for delivery from Emmerich to your workshop

Technical Data

• Article number: M312.154
• GTIN: 4054469119601
• Label: Verlängerung 150 mm Dreipunkt-Innenmess,312.146-153 kombinierbar
• Weight: 0.5 kg

Measurements

• Extension length: 150 mm
• Connection diameter: Ø29 mm
• Customs tariff number: 90173000

Compatibility & Features

• Suitable for series M312.146–M312.157 and M312.256–M312.267
• Accessory for three‑point internal measuring instruments
• Category: Zubehör (accessory)
• eClass: 21019104
• ETIM: EC002219

FAQ

Is this extension compatible with M312.146 heads?
Yes. The extension is compatible with the M312.146–153 range and can be combined with those heads to extend measuring reach; reference SKU M312.154 for ordering.

Can the extension be used to measure deep bores and recesses?
The 150 mm add‑on increases the measureable depth for three‑point internal measuring assemblies, making it suitable for deeper bores where the original instrument reach is insufficient.

How is the extension mounted to the measuring instrument?
The extension uses the standard Ø29 connection interface to couple mechanically with the matching three‑point heads; assembly is a straightforward mechanical fit without special tools.

Does the extension require calibration on its own?
The extension is a mechanical accessory; calibration applies to the measuring instrument. For measurement traceability and formal certification requirements, consult Metav Werkzeuge regarding the calibration status of the complete measuring chain.

What are the physical dimensions and weight?
Length is 150 mm, connection diameter Ø29 mm and the component weight is 0.5 kg, providing a balance between handling convenience and mechanical stability.

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