100mm Angle Turning Head For R390-1704 Indexable Inserts, 90° Cutting Angle, 8 Cutting Edges, M3.5x8.5 Torx Screw - Teknik Makina

Take advantage of a robust combination of compatibility, precise geometry and straightforward mounting: the corner tool head is optimised for R390‑1704 indexable inserts, has a 32 mm shank for secure clamping and a 90° cutting angle for consistent entry geometry — order via Metav Werkzeuge or consult our specialists for tailored integration into existing tool turrets.

Corner tool head T412TM — for R390‑1704 indexable inserts by Teknik Makina

Corner tool head T412TM designed as a heavy‑duty holder for R390‑1704 indexable inserts, suited to turning and facing operations where a 90° cutting geometry and reliable repeatability are required

• Compatible with Sandvik R390‑1704 inserts
• 32 mm shank diameter for secure clamping
• 90° cutting angle for consistent entry geometry
• Torx M3.5×8.5 screw with T15 key

Stable, predictable cutting performance for indexable inserts

The T412TM tool head is engineered to deliver consistent cutting geometry, making it easy to predict chip flow and surface finish when used with standard R390‑1704 indexable inserts. The 90° cutting angle provides a neutral engagement that simplifies process planning and reduces the need for angle compensation in CAM programs. With a 32 mm shank and a head diameter of 100 mm, the component provides the rigidity expected in high‑torque operations; this rigidity translates directly into stable cutting conditions and extended insert life. These characteristics make the holder suitable for mixed production runs where reproducibility and quick insert changes are priorities.

Quick set‑up, secure fastening and efficient workshop handling

Time in set‑up is reduced by a straightforward clamping and fastening concept: the head secures inserts with a Torx M3.5×8.5 screw operated by a T15 key, enabling repeatable torque application and predictable clamp force. The component’s overall length of 52 mm and a mass of 1.665 kg balance accessibility at the turret with sufficient mass to dampen vibration on heavier cuts. The combination of a wide shank and standardised Torx fastening supports fast tool exchanges and routine maintenance, which in turn increases machine uptime and simplifies tool inventory control in the workshop.

Compatibility and practical benefits for production workflows

Designed to accept Sandvik‑style R390‑1704 inserts, this holder integrates into established tooling systems without the need for bespoke adaptors. The eight cutting faces indicated for the head allow flexible indexing strategies when matched with multi‑edge inserts, helping to reduce downtime between edge changes. The T412TM supports common workshop practices such as pre‑setting and offline inspection, while its standardised dimensions make it straightforward to document in tooling lists and CAM setups. For purchasers looking to reduce supplier complexity, the holder’s compatibility with widely used indexable inserts makes inventory management more predictable and cost‑effective.

Contact Metav Werkzeuge for detailed integration advice on Teknik Makina’s Corner tool head T412TM and to arrange prompt supply from our Emmerich warehouse

Technical data

• Article number: T412TM
• Manufacturer: Teknik Makina
• Product: Corner tool head for R390‑1704 indexable inserts
• SKU: T412TM
• Compatible insert type: R390‑1704 (Sandvik)
• Fastening: Torx M3.5×8.5 screw, T15 key

Core specifications

• Shank diameter: 32 mm
• Head diameter: 100 mm
• Cutting edges: 8
• Cutting angle: 90°
• Total length: 52 mm
• Weight: 1.665 kg

Special features

• Compatible with Sandvik R390‑1704 indexable inserts
• Standard Torx fastening for repeatable clamp torque
• Designed for turning/facing operations requiring 90° geometry
• Robust construction for reduced vibration and stable cutting

FAQ

Is this tool head compatible with Sandvik R390‑1704 inserts?
Yes. The corner tool head accepts R390‑1704 indexable inserts and is specified for compatibility with Sandvik insert geometries.

What shank size is required for mounting the holder?
The holder uses a 32 mm shank for clamping; this dimension should be matched to the turret or toolpost receptacle.

Which screw and key are needed to secure the insert?
Inserts are secured with a Torx M3.5×8.5 screw; a T15 key is used for installation and removal.

What are the physical dimensions and weight of the tool head?
The tool head has a 100 mm head diameter, total length 52 mm and a weight of 1.665 kg, offering a stable mass for most turning operations.

Can the tool head be used for facing and profiling?
Yes. With its 90° cutting angle and compatibility with multi‑edge inserts, the holder is suitable for facing and profile turning where a square‑entry geometry is required.

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