63mm Corner Turning Head for R390-1704 Indexable Inserts, 90° Cutting Angle, M3.5x8.5 Torx - Teknik Makina

Take advantage of the combination of a 90° cutting angle, direct compatibility with R390-1704 indexable inserts, and a compact Ø63 mm head for reliable square turning operations; order the component directly via Metav Werkzeuge or request technical advice from our specialists.

Corner tool head T408TM — 90° turning head for R390-1704 indexable inserts by Teknik Makina, Ø63 mm, 22 mm shank

The Corner tool head T408TM is a 90° cutting-head designed for turning and facing operations with R390-1704 indexable inserts, suitable for standard 22 mm shank toolholders in workshops and production environments

• 90° cutting angle for square turning
• Compatible with Sandvik R390-1704 inserts
• 22 mm shank for standard toolholders
• Ø63 mm head with compact 45 mm length

Precise square turning with a compact 90° head

The T408TM delivers a defined 90° cutting angle, which is essential for accurate square shoulder and facing operations. With a Ø63 mm head and a 45 mm overall length, the design balances accessibility and rigidity: the compact geometry reduces overhang while maintaining the stiffness required for consistent metal removal. The result is repeatable shoulder definition and surface integrity when machining steels or general components with indexable tooling. The 90° geometry also simplifies setup calculations and toolpath planning in CNC turning applications.

Secure insert clamping and straightforward maintenance

Compatibility with R390-1704 indexable inserts and the included Torx M3.5×8.5 clamp screw—tightened with a T15 key—ensures a reliable, repeatable clamping interface. This standardised fastening method allows fast insert changes and precise seating, which reduces downtime and makes micro-adjustments less frequent. The head accommodates inserts from Sandvik, offering access to proven grades and chipbreakers for different materials, while the visible Torx interface supports controlled torque application and safer maintenance procedures.

Shank interface and workshop integration for consistent performance

A 22 mm shank diameter is provided for secure mounting in common toolholders, offering a familiar interface for retrofit or new setups. At 0.59 kg, the component provides a solid feel without excessive mass, supporting dynamic stability during moderate to heavy cuts. The head supplies six cutting edges configuration for insert orientation and effective use cycles. Together, these characteristics promote steady cutting forces and predictable tool life, which supports throughput optimisation and reduces the need for frequent rework.

Contact Metav Werkzeuge for delivery options and a technical consultation on integrating the Teknik Makina Corner tool head T408TM into existing turning toolholders

Technical data

• Article number: T408TM
• Manufacturer: Teknik Makina
• Suitable for inserts: R390-1704
• Compatible insert manufacturer: Sandvik
• Torque screw: M3.5×8.5 Torx

Core data

• Shank diameter: 22 mm
• Head diameter: 63 mm
• Cutting angle: 90°
• Number of cutting edges: 6
• Overall length: 45 mm
• Weight: 0.59 kg

Special features

• Indexable insert system compatibility
• Torx clamp screw for secure fastening
• Compact design for reduced overhang
• Workshop and CNC turning applications

FAQ

Which inserts fit this turning head?
The turning head is compatible with R390-1704 indexable inserts and is specified for inserts from Sandvik as noted for the T408TM.

What clamping hardware is required for insert changes?
Insert clamping uses a Torx M3.5×8.5 screw and requires a T15 key for secure and repeatable fastening on the T408TM.

What shank size is needed for mounting?
The component is manufactured for a 22 mm shank interface, suitable for standard toolholders designed for that diameter.

How does the 90° cutting angle affect machining?
A 90° cutting angle provides clear square shoulder definition and simplifies programming for shoulder and facing operations, improving dimensional control.

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