CNMG 120402 T9225 Wendeplatten - Tungaloy

Take advantage of the CVD-coated T9225 grade and the double-sided chipbreaker for reliable, productive turning of medium to heavy steel; benefit from stable chip control and long tool life. Order the CNMG120402 T9225 insert directly via Metav Werkzeuge or ask the consultants for application advice.

CNMG120402 T9225 — CNMG ISO turning insert for robust steel machining by Tungaloy

CNMG120402 T9225 is an ISO‑standard indexable insert for external and internal turning, designed as a robust universal grade for variable engagement and slightly interrupted cuts.

• CVD-coated carbide grade T9225
• Universal for medium to heavy steel
• Double-sided chipbreaker for stability
• ISO CNMG 120402 shape with 0.2 mm radius

Consistent performance under mixed cutting conditions

The combination of a CVD-coated surface and a carbide substrate in grade T9225 provides a balance between wear resistance and toughness. This makes the insert particularly suitable for medium to heavy steel machining where engagement conditions change or cuts are intermittently interrupted. The coating reduces adhesive wear and supports higher cutting parameters, while the substrate maintains edge integrity under mechanical shock. For production environments, this translates into fewer insert changes and improved process continuity, helping to keep cycle times predictable.

Stable chip control and extended tool life

Equipped with a double-sided chipbreaker, the insert promotes controlled chip formation across a range of feeds and depths of cut. The rhombic geometry with an 80° approach angle and a 0° rake offers robust cutting stability; the small 0.2 mm corner radius improves edge strength for tough starts and interrupted cuts. For users less familiar with chipbreaker function: the chipbreaker deforms and segments the chip at the cutting edge, reducing risk of entanglement and improving evacuation, which in turn protects the workpiece surface and reduces secondary operations.

Simple integration with ISO tooling systems

As an ISO CNMG 120402 insert, the geometry and mounting interfaces follow international standards, enabling straightforward fitment into compatible external holders or boring bars. The insert has a 4.76 mm thickness and the plate size corresponds to the ISO 12 designation, with a cylindrical hole for positive clamping. Typical system setup comprises an ISO holder, a support shim or clamp, and the matching fastening screw. This standardisation shortens tooling planning and simplifies inventory management across multi‑machine shops.

Why this grade benefits modern production

The T9225 grade is formulated as a robust universal option that copes well with variable steel grades and unstable cutting conditions. Its design philosophy supports productive turning with a focus on process security and repeatable surface quality. Where operations demand a reliable compromise between life and edge stability—such as mixed batch production or workshops handling diverse steel components—this insert helps maintain throughput while reducing the frequency of tool interventions.

Choose the Tungaloy CNMG120402 T9225 insert for resilient, predictable turning performance and contact Metav Werkzeuge for technical matching and procurement: info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6950916
• SKU: 6950916-Tungaloy
• Manufacturer SKU: TUN6950916
• Manufacturer: Tungaloy

Facts

• Plate size: 12
• Plate thickness: 4.76 mm
• Corner radius: 0.2 mm
• Approach angle: 80°
• Rake (clearance) angle: 0°

Special features

• CVD-coated carbide, grade T9225
• Double-sided chipbreaker
• Rhombic plate form (CNMG)
• Cylindrical hole for clamping
• ISO‑standard turning indexable insert for external and internal turning
• Robust universal grade for medium to heavy steel machining

FAQ

What materials is this insert suited for?
The CNMG120402 T9225 insert is intended primarily for medium to heavy steel machining and performs well under changing engagement conditions or slightly interrupted cuts.

How does the chipbreaker affect machining?
The double-sided chipbreaker on the insert improves chip control and evacuation, reducing the chance of chip jamming and supporting consistent surface finish.

Can the insert be used for internal turning as well as external turning?
Yes, the ISO CNMG geometry and standard hole make the insert compatible with suitable boring bars and external holders for both internal and external turning operations.

How many cutting edges are available per insert?
The insert is double-sided and indexable; edges can be rotated or flipped according to the holder and clamping method to present fresh cutting edges as required.

Which holders and clamping components are required?
Mounting requires a compatible ISO CNMG external holder or boring bar, plus the appropriate shim/clamp and securing screw; ensure form, clearance, tolerance class and thickness match the insert specification.

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.