TNMG 220408 T9225 Wendeplatten - Tungaloy

Benefit from the combination of a CVD-coated carbide grade and ISO-indexable geometry for reliable medium-to-heavy turning: the robust T9225 grade improves wear resistance while the 0.8 mm corner radius and double-sided chipbreaker enhance chip control and tool life. Order the insert directly via Metav Werkzeuge or consult the technical team for tailored application advice.

TNMG220408 T9225 TNMG turning insert — Tungaloy

The TNMG220408 T9225 is an ISO-standard triangular turning insert designed for medium to heavy Stahl turning, offering a robust universal grade and secure clamping for external and internal operations.

• CVD-coated carbide grade T9225 for Stahl machining
• ISO-indexable triangular insert TNMG220408
• 0.8 mm corner radius with 60° geometry
• Double-sided chipbreaker with cylindrical hole

Designed for dependable medium-to-heavy turning productivity

The insert is manufactured as an ISO-indexable triangular cutting solution that delivers consistent performance during demanding turning operations. The CVD-coated carbide substrate provides a balanced combination of hardness and toughness, which is particularly valuable when engagement conditions change or when the cut is slightly interrupted. As a consequence, the insert contributes to longer tool life and steadier cycle times, supporting higher throughput in production environments. The geometry and coating together reduce flank wear and improve resistance to thermal and mechanical stress, making this insert a pragmatic choice for workshops focused on predictable output and reduced tool-change frequency.

How the grade and geometry translate into real benefits

The T9225 grade is formulated as a robust universal option for a wide range of Stahl applications. Its design emphasises fracture resistance and stable chip formation rather than maximising hardness alone; this helps when machining with varying depths of cut or intermittent engagement. The 0.8 mm corner radius and 60° geometry offer a compromise between edge strength and cutting efficiency: the radius increases edge life and contributes to a reliable surface finish, while the acute 60° form supports versatile orientation in holders for both external and internal turning. In practical terms, workshops can expect improved process stability and reduced scrap rates when the cutting conditions fluctuate.

Secure clamping and system compatibility for straightforward integration

Compatibility with toolholders is governed by form, clearance angle, tolerance class, clamping method, size and thickness; the insert’s cylindrical hole ensures consistent seating and repeatable positioning. The overall system comprises the ISO insert, a matching external holder or boring bar, a shim or clamp, and the required fastening screws, so correct pairing with a holder engineered for TNMG geometry is essential. The double-sided design and standardised locating features enable economical indexability, simplifying inventory and allowing quick edge changes during production shifts. Clear mechanical fit reduces setup time and helps maintain repeatable concentricity and finish quality.

Practical advantages for the workshop and process planners

Beyond material compatibility, the insert’s chip control features—provided by the double-sided chipbreaker—support predictable swarf management and reduce the risk of built-up edge on the cutting face. The CVD layer assists in lowering adhesion and thermal degradation at the cutting zone, which benefits surface integrity and component tolerances. For operating teams and process planners, these technical attributes mean fewer unexpected interruptions, more consistent component quality, and a measurable contribution to overall equipment effectiveness. The insert is therefore suitable for workshops aiming to combine robustness with operational efficiency.

For application-specific recommendations on Tungaloy turning solutions or to secure stock and technical support at Metav Werkzeuge, contact the Metav Werkzeuge team via info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6780988

• SKU: 6780988-Tungaloy

• Manufacturer SKU: TUN6780988

• Brand: Tungaloy

• Model series: ISO-Drehwendeschneidplatten

• Material: Hartmetall

• Grade: T9225

• Insert designation: TNMG220408

• Shape: triangular

• With hole: mit Loch (cylindrical hole)

Facts

• Corner radius: 0.8 mm

• Geometry angle: 60°

• Plate size: 22

• Clearance angle: 0°

• Double-sided chipbreaker: yes

Special features

• CVD-coated carbide cutting material

• Robust universal grade for medium–heavy Stahl machining

• Double-sided chipbreaker for improved chip control

• Cylindrical hole for secure clamping and repeatability

• ISO-standard indexable insert for external and internal turning

FAQ

What applications is this insert intended for?

The TNMG220408 T9225 insert from Tungaloy is intended for turning operations, covering external and internal turning in medium-to-heavy Stahl machining where robustness and chip control are required.

Which toolholders are compatible with this insert?

Compatibility depends on holder form, clearance angle, tolerance class, clamping method, size and thickness; the TNMG220408 designation requires a holder designed for TNMG inserts with a cylindrical-hole clamping system.

What advantages does the T9225 grade provide?

Tungaloy’s T9225 grade offers robust fracture resistance and stable chip formation; combined with the CVD coating, it improves wear resistance and performs well under varying engagement conditions and light interruptions.

How does the chipbreaker design help in production?

The double-sided chipbreaker on this insert manages chips reliably and reduces built-up edge, which supports consistent surface finish and safer swarf evacuation during continuous turning cycles.

Can this insert be used for interrupted cuts?

Yes. The combination of the T9225 grade and the insert geometry is suited to applications with intermittent engagement, as the grade emphasises toughness and stable chip formation for such conditions.

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.