80mm Corner Turning Head for R390-1806 Indexable Inserts 90° Cut Angle, M4x11 Torx Fixing - Teknik Makina

Take advantage of a tool head that combines rigid clamping and precise geometry: the T426TM offers a 27 mm shank and a 90° cutting angle, ensuring stable shoulder turning with R390‑1806 indexable inserts; order via Metav Werkzeuge or consult the team for application guidance.

Corner tool head T426TM — turning tool head with 90° cutting angle for R390‑1806 indexable inserts (Teknik Makina)

The Corner tool head T426TM is a compact, purpose‑built turning tool head for shoulder turning and finishing operations, designed to accept R390‑1806 indexable inserts for reliable, repeatable performance in CNC turning centres.

• 90° cutting angle for precise shoulder turning
• 27 mm shank diameter for rigid tool clamping
• Compatible with R390‑1806 Sandvik indexable inserts
• Torx screw M4x11, T15 key for secure fixing

Rigidity and geometry for stable machining

The T426TM is engineered to provide a stable platform for shoulder turning, combining a 27 mm shank with a compact overall length of 52 mm to reduce deflection in cantilevered set‑ups. The 90° cutting angle produces square shoulders with minimal side force, which helps maintain dimensional accuracy and surface finish. The tool head’s mass of 1.081 kg contributes to vibration damping, translating into longer insert life and fewer reworks on production components.

Fast insert changes and secure clamping

Designed specifically for R390‑1806 style indexable inserts, the head features a Torx M4x11 screw secured with a T15 key, enabling quick and consistent insert replacement with minimal downtime. Compatibility with Sandvik insert geometries ensures a wide selection of grades and edge preparations for roughing or finishing. The combination of a positive clamping seat and robust fixing prevents insert movement under interrupted cuts, improving process reliability.

Clear application benefits for production environments

This corner tool head excels in operations that demand defined shoulder faces and repeatability on turning centres. The configuration with six cutting edges and a standard interface supports efficient tool set‑up and inventory management in batch and series production. The tool head’s compact diameter of 80 mm and its defined geometry simplify integration into standard tool posts, allowing consistent results across multiple machines without complex re‑engineering.

Simple set‑up, lower lifecycle costs

Installation requires only the specified shank seat and the supplied Torx screw, so changeovers are straightforward and reproducible. The robust design reduces the frequency of unplanned maintenance and the need for special adaptors, supporting steady production flow and predictable tooling costs. For detailed compatibility checks or special insert grade recommendations, Metav Werkzeuge provides technical advice and access to a broad range of insert options and spare parts.

For applications requiring precise shoulder turning with a secure, fast‑change solution, specify the Teknik Cutting Tools corner head T426TM and contact Metav Werkzeuge for tailored guidance and prompt supply from Emmerich — eMail info@metav-werkzeuge.com, tel +49 2822 7131930

Technical data

• SKU: T426TM
• Manufacturer: Teknik Makina
• Type: Corner tool head for R390‑1806 indexable inserts
• Torque screw: M4x11
• Torx key size: T15
• Compatible insert manufacturer: Sandvik

Key figures

• Diameter: 80 mm
• Shank diameter: 27 mm
• Total length: 52 mm
• Cutting edges: 6
• Weight: 1.081 kg
• Cutting angle: 90°

Features

• Compatible with R390‑1806 indexable inserts
• Torx screw M4x11 for insert fixation
• Designed for shoulder turning and finishing
• Compact design for standard tool posts

FAQ

Which inserts fit this tool head?
The corner tool head accepts R390‑1806 indexable inserts; compatibility with Sandvik grades offers selection for roughing and finishing applications.

What shank diameter is required for mounting?
Mounting requires a toolholder seat suitable for a 27 mm shank diameter as specified for the T426TM head.

How is the insert secured in the head?
Insert retention is via a Torx M4x11 screw tightened with a T15 key, providing secure and repeatable clamping.

What is the primary application for this head?
The head is intended for shoulder turning and operations where a true 90° face is required, delivering stable performance in CNC turning centres.

Is the head suitable for interrupted cutting?
The robust fixation and geometry of the T426TM minimise insert movement, making it well suited to interrupted cuts and demanding turning cycles.

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