150mm Extension for Screw-In Milling Cutter M12, 24mm Shank Opening 20.7mm, 40mm Taper Length - Teknik Makina

The combination of a secure M12 threaded connection and a 150 mm overall length provides extended reach without compromising seating stability; this supports efficient machining in recessed or hard-to-access areas. Order the extension directly via Metav Werkzeuge or ask our consultants if additional technical details are required.

Extension for screw-in cutter VT512TM — M12 thread, 150 mm overall length (Teknik Makina)

The Extension for screw-in cutter VT512TM is a precision tool extension designed to increase reach and ensure stable seating of screw-in cutters for milling and CNC toolholders.

• M12 thread for secure mounting
• 150 mm overall length for extra reach
• 24 mm shank diameter for standard holders
• 40 mm long taper for stable cutter seating

Reach further while keeping tool stability

The extended design delivers 150 mm overall length to access deeper bores and recessed features while retaining a compact footprint in the tool chain. The combination of a 24 mm shank and a long taper (40 mm) supports axial and radial stability, so concentric performance is preserved during high-precision operations. Choosing an extension with these dimensions reduces the need for secondary setups and enables machining tasks that would otherwise require bespoke fixturing or multiple operations.

Secure connection engineered for repeatability

A robust M12 thread provides a positive, reproducible interface; when combined with the 20.7 mm opening for the screw-in cutter, the connection is engineered to minimise runout and vibration. The extension’s mass (approx. 0.508 kg) has been balanced for stable handling in many standard toolholders, so the assembly is suited to routine workshop usage where repeatable positioning and quick changeovers are valued. Where concentricity is critical, the precise taper length improves seating and alignment.

Practical benefits for workshop productivity

Built to integrate into established tool systems, the VT512TM from Teknik Makina reduces handling complexity for tasks that need extra reach without sacrificing precision. The extension simplifies set-up procedures and shortens machining cycles by allowing cutters to remain mounted in a stable position while reaching otherwise inaccessible areas. The net effect is improved throughput and fewer interruptions for re-clamping or tool swaps, which supports more efficient batch and single-part production alike.

Compatibility notes and installation guidance

This extension is intended for use with screw-in cutters that fit an M12 seat and a cutter shank opening of 20.7 mm; the 24 mm exterior shank diameter matches many standard holders. The 40 mm taper length secures the cutter in the extension and promotes reliable seating. Compatibility should be confirmed against holder and cutter dimensions before ordering to ensure a correct fit and optimal performance.

For tailored advice on the VT512TM extension from Teknik Makina or to confirm compatibility and delivery options, contact Metav Werkzeuge in Emmerich by phone +49 2822 7131930 or by email at info@metav-werkzeuge.com

Technical data

• SKU: VT512TM
• Manufacturer: Teknik Makina
• Thread: M12
• Overall length: 150 mm
• Weight: 0.508 kg
• Shank diameter: 24 mm
• Shank opening for screw-in cutter: 20.7 mm
• Long taper for screw-in cutter: 40 mm

Core specifications

• Shaft diameter: 24 mm
• Opening for cutter: 20.7 mm
• Taper length: 40 mm
• Overall length: 150 mm
• Thread: M12
• Weight: 0.508 kg

Special features

• Suitable for screw-in cutters
• Secure M12 threaded connection
• Extended reach for deep milling
• Balanced design for stable seating

FAQ

Is the extension compatible with standard M12 screw-in cutters?
The VT512TM extension is designed for cutters that use an M12 threaded seat and a shank opening of 20.7 mm; compatibility should be checked against the cutter and holder dimensions.

Will the extension affect concentricity in critical operations?
The long taper and 24 mm shank diameter are intended to maintain concentricity and stable seating; correct installation and inspection of the threaded connection will help ensure repeatable alignment.

What toolholders are suitable for this extension?
The extension’s 24 mm shank is compatible with holders that accept that diameter; confirm holder clamping range and runout specifications before use.

How heavy is the extension and does weight require counterbalance?
The VT512TM weighs approximately 0.508 kg; in most standard setups this mass is acceptable, but balance considerations should be made for very high-speed applications.

Manufacturer: Teknik Cutting Tools, Buyukkayacık OSB Mah.422 Nolu Sokak.No:9, Selcuklu/KONYA/TURKEY / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; +49 2822 7131930; eMail: info@metav-werkzeuge.com