63mm Square Tool Holder For R390-11T3 Indexable Inserts, 90° Cutting Angle, M2.5x7 Torx Screw - Teknik Makina

Combine the 90° cutting geometry, firm 22 mm shank interface and Sandvik insert compatibility for dependable shoulder turning and facing operations; benefit from quick insert changes and consistent repeatability. Order directly via Metav Werkzeuge or consult our specialists for selection guidance.

Corner tool head — square turning head for R390-11T3 indexable inserts by Teknik Makina, 90° cutting geometry

Corner tool head designed as a compact turning head for precise shoulder cuts and facing, compatible with R390-11T3 indexable inserts and engineered for stable clamping in standard turret systems

• For R390-11T3 indexable inserts
• 90° cutting angle for accurate shoulders
• 22 mm shank diameter for stable clamping
• Torx M2.5x7 screw, T8 key required

Rigidity and geometry for consistent precision

The compact turning head delivers a 90° cutting angle that simplifies shoulder turning and facing operations by providing a defined contact geometry. Thanks to the 22 mm tool interface and a diameter of 63 mm, the design reduces deflection and vibration during cuts, improving surface finish and repeatability. This structural stability translates into fewer reworks and a higher first-pass yield for batch turning tasks, while the inclusion of a standardized fixing screw ensures consistent clamping force and predictable tool behaviour on the machine.

Fast compatibility and straightforward setup

Engineered for use with R390-11T3 indexable inserts, the head accepts widely available Sandvik insert formats, enabling quick insert changes and easy stock management. The supplied Torx fastening (M2.5x7) and T8 key requirement make insert replacement and maintenance straightforward on the shop floor, reducing downtime. Clear mechanical compatibility with common turret systems means retrofitting is uncomplicated; the result is a rapid return to production and fewer setup iterations when switching between operations.

Workshop resilience and practical benefits

At just over 0.5 kg and with a total length of 40 mm, the unit balances compactness with robustness for everyday workshop use. The construction prioritises stable clamping and long-term durability to withstand standard turning cycles. Compatibility with Sandvik inserts supports flexible tool management and keeps toolholding costs predictable. For production environments seeking reliable, no-nonsense tooling, this turning head offers a technically sound option that supports consistent part quality and straightforward inventory control.

For reliable high-precision turning choose Teknik Makina’s corner tool head (T579TM) — contact Metav Werkzeuge for tailored advice and fast supply from Emmerich.

Technical data

• Article number: T579TM
• Manufacturer: Teknik Makina
• Compatible inserts: R390-11T3 (Sandvik)

Core measurements

• Diameter: 63 mm
• Total length: 40 mm
• Shank diameter / clamping interface: 22 mm
• Weight: 0.503 kg
• Cutting edges: 7
• Cutting angle: 90°

Special features and compatibility

• Torx screw: M2.5x7
• Torx key: T8
• Designed for R390-11T3 indexable inserts
• Compatible with Sandvik insert systems

FAQ

How is the tool head fixed in the turret?
The turning head locates on a 22 mm interface and is secured with the Torx M2.5x7 screw; follow machine manufacturer clamping practices to ensure correct seating. The T579TM designation identifies the specific head model for ordering and replacement.

Which inserts fit this turning head?
This head is built for R390-11T3 indexable inserts, compatible with Sandvik insert geometries, allowing use of common grades and chipbreakers suited to the application.

What operations suit the 90° geometry?
A 90° cutting angle is ideal for shoulder turning and facing where a square shoulder and precise axial positioning are required; the geometry helps produce consistent fillet transitions and nominal faces.

How does the shank diameter affect performance?
The 22 mm shank diameter increases rigidity at the tool-to-holder interface, reducing deflection under cutting loads and improving surface finish and dimensional stability during medium-duty turning cycles.

What maintenance is recommended for the screw and clamping area?
Regular inspection and cleaning of the screw seat and mating surfaces is advised; tighten using the T8 key to the workshop’s prescribed torque practice and replace the M2.5x7 screw if thread damage is observed.

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