CNMG 120404 T9225 Wendeplatten - Tungaloy

Combining CVD-coated wear resistance with a robust T9225 grade delivers consistent performance for medium to heavy steel turning; the ISO-compatible CNMG form and central cylindrical hole ensure secure clamping and fast indexability. Order the CNMG120404 T9225 directly via Metav Werkzeuge or ask the consultants for application support.

CNMG 120404 T9225 – Turning insert by Tungaloy

The CNMG120404 T9225 Tungaloy insert is an ISO-standard rhombic indexable insert engineered for external and internal turning in mixed and interrupted cutting conditions.

• CVD-coated carbide grade T9225
• Rhombic CNMG 80° form, 0° rake angle
• 0.4 mm corner radius
• Double-sided chipbreaker with central hole
• Suitable for medium to heavy steel turning

Built for durable, mixed-condition steel turning

The CNMG120404 T9225 is specified for demanding turning where a balance of toughness and wear resistance is required. The T9225 grade is a CVD-coated carbide designed to withstand fluctuating engagement and light interruptions without premature chipping, which leads to longer tool life and fewer indexings per production run. For operators, this translates into more predictable cycle times and reduced unplanned stops; for planners, it means easier process dimensioning. The CVD layer adds abrasion resistance and improved thermal stability compared with uncoated grades, making the insert a reliable choice for medium to heavy steel machining.

Accurate fit and dependable clamping for stable cuts

Compatibility with toolholders follows ISO conventions: form, relief angle, tolerance class, fastening method, size and thickness determine the correct match. The rhombic CNMG geometry with an included angle of 80° and a 0° rake angle helps maintain cutting-edge stability. The central cylindrical hole supports secure clamping and repeatable seating in the pocket, while the 4.76 mm thickness and 0.4 mm corner radius combine to resist deflection under heavier depths of cut. Together, these characteristics reduce vibration and improve surface finishes, so batch-to-batch consistency is easier to achieve in high-mix production.

Optimise machining efficiency with reliable chip control

Chip behaviour is governed by the double-sided chipbreaker and the insert grade; the double-sided chipbreaker paired with the central hole gives good chip control across a range of cutting parameters and promotes predictable chip forms for safer automated handling. Being indexable on both sides effectively halves tooling consumption per cutting edge, improving cost-efficiency. For best results, select a holder and clamping set that conform to ISO dimensions and match the insert’s geometry and tolerance class; this ensures proper seating and leverages the insert’s intended performance in external and internal turning operations.

For application-specific recommendations on Tungaloy inserts such as the CNMG120404 T9225, contact Metav Werkzeuge via info@metav-werkzeuge.com or call +49 2822 7131930 to discuss toolholder compatibility and batch supply

Technical data

• Article number: 6781343
• SKU: 6781343-Tungaloy
• Manufacturer SKU: TUN6781343
• Label: CNMG120404 T9225 Tungaloy insert
• Material: Carbide
• Series: ISO turning indexable inserts

Core data

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.4 mm
• Relief / rake angle: 0°
• Included angle: 80°
• Hole style: cylindrical hole

Special features

• Grade/coating: T9225, CVD-coated carbide
• Geometry: CNMG rhombic form
• Chip control: double-sided chipbreaker
• Application: external and internal turning
• Suitability: medium to heavy steel machining
• Compatibility criteria: form, relief angle, tolerance class, fastening, size, thickness

FAQ

Which materials is this insert best suited for?
The CNMG120404 T9225 insert is optimised for medium to heavy steel applications; the T9225 grade performs well under mixed cutting conditions and light interruptions.

What is the corner radius and how does it affect machining?
The insert has a 0.4 mm corner radius; this radius increases edge strength for heavier cuts while offering an acceptable surface finish for general turning tasks.

Is the insert indexable and reversible?
Yes — the CNMG geometry is double-sided with a central cylindrical hole, enabling rotation to a fresh cutting edge and secure clamping for repeatable seating.

How does the CVD coating improve performance?
The CVD-coated carbide on the CNMG120404 T9225 provides enhanced abrasion resistance and thermal stability, which extends wear life and helps maintain consistent cutting behaviour.

Which holders are compatible with this insert form?
ISO-standard holders for CNMG form and corresponding pocket dimensions are compatible; ensure the holder matches the insert’s size, thickness and tolerance class for correct clamping and performance.

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.