TNMG 220404 T9225 Wendeplatten - Tungaloy

Combining a CVD‑coated carbide T9225, ISO‑standard TNMG geometry and a 0.4 mm corner radius, this insert delivers stable chip control and reliable mid-to-heavy steel turning performance — order the TNMG220404 T9225 via Metav Werkzeuge or consult our specialists for process-adapted recommendations.

TNMG 220404 T9225 triangular ISO turning insert by Tungaloy — CVD‑coated carbide for steel turning

The TNMG220404 T9225 is an ISO‑standard triangular turning insert designed for external and internal turning; its universal CVD‑coated carbide grade suits varying engagement conditions and interrupted cuts

• ISO TNMG geometry for standardised clamping
• CVD-coated carbide grade T9225 for steel turning
• 0.4 mm corner radius for predictable edge strength
• Double-sided chipbreaker with cylindrical hole

Consistent performance for medium-to-heavy steel turning

The insert combines a CVD‑coated surface with a tough carbide substrate to balance wear resistance and fracture toughness. The CVD layer increases abrasion resistance on the rake and flank faces, which supports longer tool life under continuous cutting, while the underlying carbide provides the necessary toughness for light interruptions and variable engagement. As a result, the component achieves stable chip formation and predictable tool behaviour during medium‑to‑heavy turning operations, improving process repeatability and reducing unscheduled tool changes.

Secure geometry and predictable clamping for series production

The ISO TNMG format and the insert’s triangular plate geometry enable compatibility with a wide range of ISO‑type external holders and boring bars; clamping fit depends on form, relief angle, tolerance class, fixing method, size and thickness. The insert has a 0° relief angle and a 60° included angle, offering a compact cutting edge for turning where axial space is limited. The 4.76 mm plate thickness and 22 mm inscribed circle contribute to rigidity, while the cylindrical hole and standard fixation make repeatable seating and clamping straightforward — a decisive advantage for production environments that require consistent set‑ups and quick index changes.

Effective chip control and application guidance for reliable results

Equipped with a double-sided chipbreaker, the insert supports controlled chip segmentation and evacuation across a range of cutting conditions. The chipbreaker design reduces risk of built-up edge and helps maintain surface quality during both external and internal turning. For best results, select the chipbreaker variant and cutting data that match the workpiece material and machine stability; the insert is optimised for steel turning, offering reliable performance when mild interruptions or variable engagement demand extra toughness. The system concept comprises the ISO insert, a matching external holder or boring bar, a shim/clamp set and replacement screws — together they enable fast index changes and minimal downtime.

For process-specific recommendations on Tungaloy turning solutions or to discuss the TNMG220404 T9225 for a particular application, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 — our consultants provide tailored advice for production requirements

Technical data

• Article number: 6780916
• Manufacturer SKU: TUN6780916
• SKU: 6780916-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• ISO designation: TNMG220404

Core specifications

• Corner radius: 0.4 mm
• Plate thickness: 4.76 mm
• Inscribed circle: 22 mm
• Included angle: 60°
• Relief angle: 0°
• Hole style: cylindrical hole

Design & special features

• CVD-coated carbide (T9225)
• Triangular plate form
• Double-sided chipbreaker
• ISO-standard TNMG geometry
• Intended application: external and internal turning
• Material: carbide

FAQ

Which materials is this insert best suited for?
The TNMG220404 T9225 insert is formulated as a robust universal grade for steel turning, providing good wear resistance and toughness for medium‑to‑heavy machining and situations with light interruptions.

What determines compatibility with a toolholder?
Compatibility depends on the holder matching the insert form, relief angle, tolerance class, fixing method, size and thickness; the ISO TNMG geometry of the TNMG220404 simplifies selection for standard external holders and boring bars.

How does the T9225 grade perform under interrupted cuts?
The T9225 CVD‑coated carbide offers increased toughness and stable edge behaviour, which supports reliable performance in interrupted cuts and changing engagement conditions without frequent edge failure.

What surface finish can be expected from a 0.4 mm corner radius?
A 0.4 mm corner radius provides a compromise between edge strength and surface quality: it increases edge robustness while still enabling acceptable surface finish for many turning applications.

Is the insert reversible and suitable for indexing?
The double‑sided chipbreaker design allows multiple usable cutting positions; the cylindrical hole and ISO TNMG format enable quick indexing and secure reclamping in standard fixtures.

Manufacturer/Responsible: Tungaloy-NTK Germany GmbH, Katzbergstraße 3a, 40764 Langenfeld - Protected trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The item offered is an original, brand-new product from the manufacturer.