CNMG 120412 T9225 Wendeplatten - Tungaloy

Take advantage of a robust, CVD‑coated carbide grade that combines toughness for interrupted cuts with economical double‑sided use; the result is stable machining and longer tool life in medium to heavy steel turning. Order the insert directly via Metav Werkzeuge or ask the Metav Werkzeuge consultants for application support.

CNMG 120412 T9225 ISO turning insert for turning — Tungaloy

The CNMG120412 T9225 is an ISO‑standard rhombic turning insert designed for external and internal turning operations, offering a CVD‑coated cemented carbide grade optimised for medium to heavy steel machining.

• CVD‑coated cemented carbide T9225
• For medium to heavy steel turning
• Rhombic, 80° form with 1.2 mm corner radius
• Double‑sided insert, cylindrical hole, 4.76 mm thick

Consistent cutting performance where toughness matters

The CVD‑coated T9225 grade is formulated as a robust universal option for demanding steel applications, providing a balanced combination of hardness and toughness. This coating enhances wear resistance while the cemented carbide substrate preserves edge integrity during slightly interrupted cuts. The design supports stable chip formation and contributes to improved tool life, which reduces tool changes and supports uninterrupted production cycles in conventional turning tasks.

Secure fit and geometry that simplifies holder selection

Compatibility with the chosen toolholder depends on form, clearance angle (0°), tolerance class, clamping method, size and thickness. The insert’s rhombic 80° shape and cylindrical hole ensure secure seating in many standard ISO external holders and boring bars; the 4.76 mm plate thickness and 1.2 mm corner radius are decisive for matching the correct clamping and cutting conditions. Specifying these geometric parameters avoids misfits and shortens setup time, delivering more predictable machining results.

Economical operation and adaptable machining strategy

Being double‑sided, the insert halves the effective cost per cutting edge compared with single‑edged alternatives. The universal nature of the grade reduces the number of different inserts in inventory, streamlining purchasing and logistics. For process optimisation, pair the insert with the appropriate chipbreaker style—this insert is supplied with a double‑sided chipbreaker—and select cutting parameters that reflect the machine rigidity and workpiece stability. The overall effect is higher throughput and a more consistent surface finish with lower per‑part tooling costs.

Contact Metav Werkzeuge for matching toolholder recommendations and cutting data for Tungaloy inserts; Metav Werkzeuge is available at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6944509
• Manufacturer SKU: TUN6944509
• SKU: 6944509-Tungaloy
• Model series: ISO‑Drehwendeschneidplatten

Facts

• Corner radius: 1.2 mm
• Insert thickness: 4.76 mm
• Insert size: 12 mm
• Shape angle: 80°
• Clearance angle: 0°

Special features

• Material: cemented carbide
• Coating / grade: T9225 (CVD‑coated)
• Insert designation: CNMG120412
• Hole style: cylindrical hole
• Chipbreaker: double‑sided
• Plate form: rhombic (80° diamond)
• Typical application: external and internal turning of steel
• System composition: ISO insert for external holder or boring bar, with clamping/seat and fasteners

FAQ

What steels is this insert designed for?
The CNMG120412 T9225 insert is intended for medium to heavy steel turning and performs well where moderate toughness is required for interrupted cuts.

Is the insert reversible and how does that affect cost efficiency?
Yes, the insert is double‑sided; CNMG120412 T9225 therefore offers two usable cutting edges per side, lowering cost per edge and extending service intervals.

Which chipbreaker does this insert use and why is it important?
The insert is supplied with a double‑sided chipbreaker; the chipbreaker promotes controlled chip formation and contributes to consistent surface quality in steel machining.

How critical is matching the clearance angle and thickness to the holder?
Very critical—compatibility depends on form, clearance angle, tolerance class, clamping and thickness. Matching the 0° clearance and 4.76 mm thickness to the correct holder avoids seating issues and unstable cutting.

Can this insert be used for internal boring as well as external turning?
Yes, the geometry and ISO designation make the insert suitable for both external turning and internal operations when mounted in a compatible boring bar or holder.

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.