50mm Indexable Turning Head 90° Cut Angle for R390-11T3 Indexable Inserts, M2.5x7 Torx - Teknik Makina

Take advantage of a precise 90° cutting angle and a compact 22 mm shank for fast, reliable corner turning; the robust clamping with Torx M2.5x7 screw and T8 key reduces downtime. Order the corner tool head directly via Metav Werkzeuge or consult our specialists for application advice.

Corner Tool Head (Eckmesserkopf) — 90° indexable-head for R390‑11T3, 22 mm shank (Teknik Makina)

The Corner Tool Head (Eckmesserkopf) is an indexable insert holder designed for precision corner turning and profiling with R390‑11T3 inserts, optimised for workshop and CNC lathe applications.

• 90° cutting angle for precise corner turning
• Supports R390‑11T3 indexable inserts (Sandvik)
• 22 mm shank diameter, 50 mm head diameter
• Torx M2.5x7 screw; T8 key for secure clamping

Consistent corner geometry for repeatable production

A fixed 90° cutting angle delivers consistent corner profiles across batches, making this head ideal where repeatability matters. The 50 mm head diameter stabilises the cutting assembly and helps maintain geometry when machining small corners and shoulders. Because the tool is an indexable-insert holder, the cutting edge can be renewed quickly without regrinding, so setup variation is minimised and part quality stays consistent.

Fast insert changes and secure clamping to cut downtime

Insert retention is handled by a Torx M2.5x7 screw operated with a T8 key, enabling quick and reliable replacement of indexable inserts. The holder accepts Sandvik R390‑11T3 inserts and provides six usable edges on a multi-edge insert format, extending service intervals and lowering consumable costs. With a compact 22 mm shank, the head fits common tool posts and turrets while its modest mass of 0.355 kg keeps handling and balancing straightforward during tool changes.

Broad compatibility for workshop and CNC turning

Compatibility with R390‑11T3 indexable inserts from Sandvik makes the head versatile for a range of turning tasks where defined corner radii and shoulder finishes are required. Indexable inserts simplify chip control and reconditioning: when an edge is worn, the insert is rotated or replaced rather than sharpening the holder. This modular approach suits both manual workshop use and automated production on turning centres, providing predictable cutting behaviour and easy stock management.

Engineered for practical productivity and supplier confidence

Built by Teknik Makina and offered through Metav Werkzeuge, this indexable insert head brings practical advantages to everyday machining: quick insert service, standard fastener sizes for common torque tools, and a geometry that supports reliable corner machining. Metav’s European distribution and quality control act as an additional assurance of supply continuity and product consistency, backed by a broad range of compatible tooling and decades of sector experience.

Contact Metav Werkzeuge for tailored advice on integrating the Teknik Makina corner tool head into existing setups and to arrange an order via Metav Werkzeuge’s sales team.

Technical data

• SKU: T578TM
• Manufacturer: Teknik Makina
• Product name: Eckmesserkopf / Corner Tool Head for R390‑11T3 indexable inserts

Core specifications

• Shank diameter: 22 mm
• Head diameter: 50 mm
• Total length: 40 mm
• Cutting angle: 90°
• Cutting edges (insert): 6
• Weight: 0.355 kg
• Screw: M2.5x7 (Torx)
• Key size: T8

Features

• Compatible inserts: R390‑11T3
• Compatible insert manufacturer: Sandvik
• Indexable insert holder design
• Compact, workshop-ready format

FAQ

Which indexable inserts fit this head?
The holder accepts Sandvik R390‑11T3 indexable inserts; the head is configured specifically for this insert form and size.

What shank size is required for installation?
The head has a 22 mm shank diameter and is intended for toolposts or turrets that accept a 22 mm shank.

How are inserts secured and replaced?
Inserts are fastened with a Torx M2.5x7 screw, accessed using a T8 key for secure clamping and quick replacement on the Teknik Makina head (SKU T578TM).

What turning tasks is the head best suited to?
The 90° geometry is optimised for corner turning and shoulder profiling on CNC lathes and manual turning equipment where defined corner geometry is required.

Is the tool heavy to handle during tool changes?
With a weight of 0.355 kg, the head is compact and manageable for routine tool changes without special handling aids.

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