125mm Corner Turning Head for R390-1704 Indexable Inserts 90° Cutting Angle, M3.5x8.5 Torx T15 - Teknik Makina

Take advantage of a rigid 40 mm shank and a 90° cutting angle for stable, repeatable machining with Sandvik R390-1704 inserts; order directly via Metav Werkzeuge or consult our specialists for application support.

90° Indexable Insert Head (Eckmesserkopf) — for R390-1704, 40 mm Shank — Teknik Makina

The 90° indexable insert head is a compact turning tool holder engineered for precise shoulder and profiling operations using R390-1704 indexable inserts, suited to CNC lathes and turret tool posts.

• 90° cutting angle for precise shoulder work
• Compatible with R390-1704 indexable inserts
• 40 mm shank for high rigidity and stability
• Torx M3.5x8.5 screw with T15 key for secure clamping

Increased stability for consistent surface quality

A robust 40 mm shank and a substantial head diameter of 125 mm deliver the rigidity necessary to reduce tool vibration and chatter. The resulting improvement in surface finish and dimensional stability comes from the fixed 90° cutting angle, which concentrates cutting forces and allows predictable chip formation. For production environments that demand repeatability, the construction minimises deflection and extends insert life, lowering overall tooling costs.

Faster insert changes and reliable clamping reduce downtime

Quick and secure insert replacement is enabled by the Torx M3.5x8.5 fastening combined with a T15 key, which simplifies tool change routines and limits over-tightening. Compatibility with R390-1704 inserts (Sandvik) means commonly stocked inserts can be used immediately, shortening setup time. The straightforward clamping design supports efficient workshop workflows and reduces non-productive time during batch changeovers.

Integration with existing turning systems and versatile application

Designed to fit tool posts with a 40 mm holder interface, this head integrates easily into established toolsets and supports a range of external turning and profiling tasks. The head’s overall length of 62 mm and a compact footprint help when multiple tools are mounted in close proximity. Weighing 3.68 kg, the assembly offers a balance between mass for dampening and a size that keeps turret loads manageable, making it suitable for both heavy cuts and precise finishing operations.

For technical advice or to source the Teknik Cutting Tools 90° indexable insert head (SKU T414TM), contact Metav Werkzeuge in Emmerich at info@metav-werkzeuge.com or call +49 2822 7131930 to discuss integration into existing tooling systems

Technical data

• Article number: T414TM
• Manufacturer: Teknik Makina
• Compatible inserts: R390-1704 (Sandvik)
• Shank diameter: 40 mm
• Head diameter: 125 mm
• Overall length: 62 mm
• Cutting angle: 90°
• Weight: 3.68 kg
• Torx screw: M3.5x8.5
• Torx key size: T15

Core data

• Shank diameter: 40 mm
• Head diameter: 125 mm
• Overall length: 62 mm
• Weight: 3.68 kg
• Cutting angle: 90°
• Cutting edges: 9

Special features

• Compatible with R390-1704 indexable inserts (Sandvik)
• Torx M3.5x8.5 fastening
• T15 key for clamping
• SKU T414TM
• Brand: Teknik Makina

FAQ

Which inserts fit this head?
The head accepts R390-1704 indexable inserts; compatible inserts from Sandvik can be fitted without modification.

What is the shank interface size?
The tool head uses a 40 mm shank interface suitable for standard 40 mm holder mounts.

How is the insert secured?
Inserts are clamped with a Torx M3.5x8.5 screw tightened using a T15 key for secure, repeatable clamping.

Is the head suitable for heavy roughing cuts?
With a 40 mm shank and a solid build, the head provides the rigidity needed for demanding turning operations, improving stability under load.

What is the SKU for ordering or referencing?
Order or reference SKU T414TM when enquiring about the Teknik Cutting Tools 90° indexable insert head.

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