100mm Corner Turning Head 90° For R390-1806 Indexable Inserts, M4x11 Torx T15 - Teknik Makina

Take advantage of a solid combination of precise 90° geometry and stable 32 mm mounting for consistent shoulder turning and repeatable results; the robust design with Torx M4x11 fastening supports safe clamping and simple maintenance. Order the tool through Metav Werkzeuge or consult our specialists for application-specific setup.

Corner tool head T428TM – 90° holder for R390-1806 indexable inserts by Teknik Makina

The Corner tool head T428TM is a compact 90° toolholder engineered for shoulder turning and profiling with R390-1806 indexable inserts, suited to medium-duty lathe work and workshop environments

• 90° cutting angle for precise corner cuts
• Compatible with R390-1806 Sandvik inserts
• 32 mm shank diameter for stable mounting
• Torx M4x11 fastening, T15 key

Consistent shoulder turning through rigid mounting

The design delivers stable clamping and repeatable results by combining a 32 mm shank with a robust body and secure Torx fastening. This rigid interface reduces vibration and improves surface finish when performing shoulder and face-turning operations, so cycle-time variations are minimised and tool life becomes more predictable. The specification includes a 100 mm diameter reference and an overall length of 52 mm, which contributes to compact tool overhang and better control of cutting forces.

Easy integration with common indexable inserts for efficiency

Compatibility with R390-1806 indexable inserts from Sandvik allows straightforward tool management and inventory alignment across shops that already use this insert family. The holder accommodates the standard insert geometry and is secured with an M4x11 Torx screw (T15), enabling fast insert changes and low downtime. With seven cutting edges specified on the head, the component is optimised for multi-edge engagement patterns that maintain cutting stability in interrupted cuts and profiling tasks.

Measurable benefits for workshop productivity

Engineered for reliable everyday use, the component is specified with a weight of 1.595 kg, providing enough mass to dampen chatter without excessive load on the turret. The 90° cutting angle simplifies setup for shoulder operations and reduces the need for secondary finishing passes, improving throughput. Where process reproducibility and predictable tool behaviour are priorities, this toolholder is designed to be integrated into standard toolkits and CNC turret systems without lengthy adaptation.

For robust 90° shoulder turning and dependable insert compatibility, contact Metav Werkzeuge to discuss Teknik Makina's T428TM and ensure fast supply from our Emmerich stock — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: T428TM
• Manufacturer: Teknik Cutting Tools
• Compatible inserts: R390-1806

Facts

• Diameter: 100 mm
• Shank diameter: 32 mm
• Overall length: 52 mm
• Weight: 1.595 kg
• Cutting angle: 90°
• Cutting edges: 7

Special features

• Torx screw M4x11
• Torx key size T15
• For R390-1806 indexable inserts
• Compatible with Sandvik insert range

FAQ

What insert type does this holder accept?
The holder is specified for R390-1806 indexable inserts and is compatible with the Sandvik insert family named for that designation.

Is the tool suitable for shoulder turning on a CNC lathe?
Yes, the T428TM corner tool head is designed with a 90° cutting angle and a 32 mm shank to provide the rigidity required for reliable shoulder turning on turret-equipped lathes.

Which fastening and key size are required to secure inserts?
Insert clamping is achieved with a Torx M4x11 screw; the corresponding key size is T15, ensuring secure and repeatable fastening.

How does the toolholder improve surface finish and tool life?
The combination of a compact overall length, 32 mm mounting diameter and robust construction reduces vibration and tool deflection, which improves surface finish and supports longer insert life.

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