100mm Extension for Screw-In Milling Cutter With 20mm Shank, M10 Thread - Teknik Makina

Take advantage of an increased working reach combined with secure clamping and a compact, lightweight design for smoother toolpaths and reliable machining cycles. The extension’s 20 mm shank, M10 thread and 100 mm overall length deliver practical reach without compromising stability — order the extension directly via Metav Werkzeuge or ask the consultants for application advice.

Extension for Screw-in Milling Cutters VT508TM — 100 mm overall length, 20 mm shank | Teknik Makina

The Extension for Screw-in Milling Cutters VT508TM is a precision adapter designed to extend screw-in milling cutters for CNC and manual milling operations, offering increased reach and stable seating for demanding toolpaths.

Stable 20 mm shank for secure clamping
M10 thread for screw-in cutter compatibility
100 mm overall length for extended reach
Lightweight 0.238 kg for reduced spindle load

Extend reach without compromising machining stability

Extending the working length of a screw-in cutter allows access to deeper pockets or recessed features without resorting to long, flexible toolholders. The VT508TM acts as a precision adapter that preserves the cutter’s seating geometry while adding reach. Longer reach is achieved without significant loss of stiffness thanks to the carefully dimensioned shank and taper interface, which maintain concentricity and help avoid chatter. This results in more consistent surface finish and fewer interrupted machining cycles, supporting higher throughput in both prototype and production environments.

Secure clamping and predictable dynamic behaviour

A reliable connection between cutter and holder is essential for repeatable results. The adapter’s 20 mm shank and M10 thread provide a firm mechanical interface and a defined engagement length, while the conical seating section of 30 mm ensures axial alignment. The combination of secure thread engagement and a tapered fit reduces the risk of micro-movement under load, improving runout behaviour and tool life. The extension’s lightweight construction (0.238 kg) keeps additional centrifugal load low, helping to preserve spindle bearings and maintain dynamic balance at typical machining speeds.

Easy integration into workshop tooling and process flow

The extension is intended for straightforward use with standard screw-in milling cutters and common toolholding setups, so integration into existing tool libraries is simple. By avoiding special bespoke holders, shops can reduce inventory complexity and react faster to changing job requirements. The adapter supports efficient preparation on the toolbench and contributes to a leaner workflow: fewer tool changes and less repositioning mean shorter cycle times. Combined with Metav’s emphasis on reliability and supply from the Emmerich quality hub, this extension supports consistent production results across diverse applications.

For a tailored recommendation on using the VT508TM extension from Teknik Makina, contact Metav Werkzeuge in Emmerich for application guidance — eMail info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: VT508TM
• Manufacturer: Teknik Makina
• SKU: VT508TM

Numbers / Core technical data

• Shaft diameter: 20 mm
• Shank opening for screw-in cutter: 17.7 mm
• Cone length for screw-in cutter: 30 mm
• Overall length: 100 mm
• Weight: 0.238 kg
• Thread: M10
• eCl@ss: 21189208
• ETIM: EC002219

Special features

• Suitable for screw-in milling cutters
• Precision adapter for extended reach
• Compact and lightweight design
• Designed for stable seating and reduced runout

FAQ

What is the shank diameter of the extension?
The extension has a 20 mm shank; the VT508TM is specified with this diameter to ensure stable clamping in compatible toolholders.

Which thread does the adapter use for the cutter connection?
The adapter features an M10 thread, making it compatible with screw-in milling cutters that employ the same thread form.

How long is the extension in total?
The overall length is 100 mm, providing extra reach where standard holders are too short.

Is the extension heavy and will it affect spindle balance?
At 0.238 kg the VT508TM is lightweight; this helps to keep additional centrifugal loading minimal and supports predictable dynamic behaviour.

Which cutter type is this designed for?
This adapter is intended for screw-in milling cutters and enables secure mounting and extended reach when those cutters are employed.

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