170mm Extension for Screw-In Milling Cutter 32mm Shank, M16 Thread - Teknik Makina

The combination of a 32 mm shank and a 40 mm long taper delivers extended reach with stable seating for demanding milling operations; the robust M16 thread and 170 mm overall length support secure mounting and improved tool access. Order the extension directly via Metav Werkzeuge or ask the consultants for application-specific advice.

Extension for screw-in cutters VT521TM – 32 mm shank, M16 thread (Teknik Makina)

The Extension for screw-in cutters VT521TM gives extended tool reach and rigid clamping for CNC milling and workshop applications in which screw-in cutters require secure, low-vibration mounting

• 32 mm shank for stable clamping
• M16 thread for secure attachment
• 170 mm overall length for extended reach
• 40 mm long taper for rigid seating

Extended reach with uncompromised rigidity

The VT521TM extension is engineered to extend cutter reach without sacrificing stability. With a 32 mm shank and a 170 mm overall length, the holder increases accessibility to deep or awkward features while maintaining a compact profile that reduces deflection. The 40 mm long taper provides a larger contact surface inside the cutter body, which helps to reduce runout and vibration during high-feed operations. This combination supports consistent chip formation and predictable surface finish for milling tasks.

Precision fit that reduces runout and improves process reliability

Accuracy in the connection is critical for repeatable results; the M16 thread mates precisely with screw-in cutters and, together with the 28.7 mm cutter opening, ensures a tight mechanical fit. This dimensional accuracy minimises axial and radial play, lowering the risk of chatter and tool failure. For operations where concentricity affects tolerances, the precise interface reduces scrap rates and downstream rework, contributing to more efficient production cycles.

Built for workshop and CNC environments with practical handling

Weighted at 1.254 kg, the extension offers a reassuring feel for manual setup while remaining suitable for use in automated tool-changing systems. The robust construction supports everyday shop use, from prototype work to serial production. The straightforward geometry facilitates fast inspection and replacement during maintenance, supporting predictable machine uptime. Supplied dimensions and clear technical data make the component easy to specify in tooling lists and BOMs for process planners.

Contact Metav Werkzeuge today to discuss how the Teknik Makina extension VT521TM with M16 thread fits into the tooling concept; email info@metav-werkzeuge.com or call +49 2822 7131930 for tailored advice

Technical data

• Article number: VT521TM
• Manufacturer: Teknik Makina
• Total length: 170 mm
• Shank diameter: 32 mm
• Cutter opening: 28.7 mm
• Long taper (insertion): 40 mm
• Thread: M16
• Weight: 1.254 kg

Facts

• Total length: 170 mm
• Shank diameter: 32 mm
• Cutter opening: 28.7 mm
• Long taper: 40 mm
• Weight: 1.254 kg

Special features

• Suitable for screw-in cutters
• Designed for CNC milling and workshop applications
• Secure M16 threaded connection
• Long taper for improved seating and reduced runout

FAQ

Is this extension compatible with common screw-in cutter systems?
The extension VT521TM is intended for screw-in cutters and features an M16 threaded interface and a 28.7 mm cutter opening to match compatible cutter bodies.

What benefits does the 40 mm long taper bring?
A 40 mm long taper increases contact area between the extension and cutter, improving seating stability and reducing runout during milling with the VT521TM.

Can the extension be used on CNC machines with automatic tool changers?
The VT521TM’s dimensions and weight (1.254 kg) make it suitable for many CNC environments; compatibility depends on the machine’s tool-holder specifications and clamping system.

How does the 32 mm shank affect tool performance?
The 32 mm shank provides a robust cross-section for clamping, which lowers deflection under load and supports consistent finishing when using screw-in cutters.

Is the VT521TM suitable for precision finishing operations?
Yes—its precise thread fit and long taper contribute to low vibration and improved concentricity, making the VT521TM appropriate for finishing where dimensional accuracy matters.

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