TNMM 220412 T9225 Wendeplatten - Tungaloy

Take advantage of robust CVD-coated carbide, a 60° triangular geometry and a 1.2 mm corner radius for reliable performance in medium to heavy steel turning; order original Tungaloy inserts via Metav Werkzeuge or consult the technical sales team for application-specific advice.

TNMM 220412 T9225 — Tungaloy turning insert (triangular, 60°)

TNMM220412-57 T9225 is an ISO-standard triangular turning insert designed for external and internal turning in steel, delivering a balance of toughness and wear resistance for variable cutting conditions.

• CVD-coated carbide grade T9225
• Robust for medium to heavy steel turning
• 60° triangular insert with 1.2 mm radius
• Compatible with ISO turning holders

Long-life performance for variable steel turning

The CVD-coated carbide composition of the insert provides a durable cutting edge suitable for medium to heavy steel operations where intermittent cuts or changing engagement demand increased toughness. The T9225 grade is formulated as a universal, robust option that maintains edge stability when chip loads vary, reducing the frequency of tool changes and supporting consistent cycle times. This results in improved uptime and a clearer return on machining productivity when processing demanding workpieces.

Geometry and fit that reduce set-up complexity

A 60° triangular shape with a 1.2 mm corner radius and a plate thickness of 4.76 mm offers straightforward accommodation in a wide range of ISO holders; the 0° relief angle supports predictable cutting forces and accessible toolpath clearance. The insert’s cylindrical hole fixing provides secure clamping and repeatable seating, which simplifies toolholder selection and reduces set-up variations. For shops seeking reliable interchangeability, the ISO designation ensures compatibility across standardized clamping systems.

Predictable chip control and system integration

The integrated chipbreaker designation 57 works in concert with the grade and the substrate to manage chip form during common turning operations. Combined with a matching external holder and correct clamping torque, the system helps to maintain stable chip flow and protect the cutting edge under fluctuating conditions. The complete system approach — insert, holder, shim and clamping screw — supports consistent component quality and reduces secondary operations associated with poor chip evacuation.

Practical application guidance and economic benefit

Designed for turning applications, the insert is recommended for both external and internal operations in steel where a balance of wear resistance and edge toughness is required. Selecting the appropriate chipbreaker and ensuring machine-tool rigidity will extend tool life and enhance surface finish. Over successive operations, the reduced downtime for insert changes and predictable tool life contribute to lower total machining costs and more reliable delivery of finished parts.

Contact Metav Werkzeuge for tailored application advice on Tungaloy turning inserts; our technical team can recommend the optimal holder and chipbreaker combination — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6780814
• Manufacturer SKU: TUN6780814
• Our SKU: 6780814-Tungaloy
• Model series: ISO turning inserts
• Material: carbide

Facts

• Geometry angle: 60°
• Corner radius: 1.2 mm
• Plate thickness: 4.76 mm
• Insert size: 22
• Relief angle: 0°
• Chipbreaker: 57

Design and special features

• Shape: triangular
• Hole: with hole
• Hole style: cylindrical hole
• Grade: T9225
• Coating/type: CVD-coated carbide
• Typical application: external and internal turning

FAQ

Is this insert suitable for interrupted cuts in steel?
The TNMM220412-57 T9225 insert from Tungaloy is designed as a robust universal grade and is suitable for interrupted or variable engagement cutting in medium to heavy steel.

What holders are compatible with the insert?
Compatibility is determined by ISO form, clearance angle, tolerance class, fixation and plate thickness; the TNMM 220412 designation matches standard ISO turning holders for triangular inserts.

How does the chipbreaker 57 influence performance?
Chipbreaker 57 is engineered to promote stable chip formation with this grade and geometry, supporting consistent evacuation and protecting the cutting edge during general turning operations.

Can this insert be used for internal turning?
Yes; the insert’s triangular 60° geometry and secure cylindrical-hole fixing make it suitable for both external and internal turning when paired with an appropriate boring bar or holder.

What does the T9225 grade offer compared with standard grades?
T9225 is a CVD-coated carbide grade optimised for a broad range of steels, emphasising toughness and wear resistance for reliable performance under changing cutting 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.