TNMG 220412 T9225 Wendeplatten - Tungaloy

Take advantage of the combination of a robust universal grade, CVD-coated carbide wear protection and a 60° triangular geometry for consistent performance in medium-to-heavy steel turning; order directly via Metav Werkzeuge or contact our consultants for application advice.

TNMG220412 T9225 ISO triangular turning insert — 60° geometry, 1.2 mm corner radius (Tungaloy)

TNMG220412 T9225 is an ISO‑standard indexable insert designed for medium-to-heavy turning where toughness and chip control are required

• CVD-coated carbide for durability
• 60° triangular form for versatile turning
• 1.2 mm corner radius for edge strength
• Double-sided chipbreaker with cylindrical hole

Robust cutting performance for interrupted and varying cuts

The T9225 grade combines a CVD coating with a tough carbide substrate to deliver a balance between wear resistance and edge toughness. This makes the insert particularly suited to medium-to-heavy steel machining, where changing engagement or light interruptions demand increased fracture resistance. The CVD layer reduces flank wear and preserves cutting geometry over longer cycles, translating into more predictable machining and fewer unscheduled insert changes.

ISO conformity and straightforward holder compatibility

Produced to ISO plate standards, the triangular insert’s 60° geometry and defined thickness simplify selection of a suitable external toolholder. Compatibility to the holder depends on form, clearance angle, tolerance class, fastening method, size and thickness; these parameters ensure secure seating and repeatable location. For shops standardising on ISO inserts, the TNMG series reduces setup complexity and helps to maintain consistent clamping and repeatability across different machine tools.

Strong edge and effective chip control for cleaner finishes

A 1.2 mm corner radius provides additional edge strength, reducing the risk of edge chipping under heavy cross‑sections while supporting stable cutting forces. The double-sided chipbreaker is designed to fragment swarf reliably during turning operations, lowering the chance of entanglement and improving surface quality. For users less familiar with chipbreaker design: this is a small groove geometry on the rake face that guides chips to break into manageable segments, which also eases chip evacuation from the cut.

System approach that reduces downtime and improves throughput

The TNMG220412 insert is part of a complete cutting system: ISO insert, matched external holder or boring bar, clamping set and replacement screws. Specifying the correct chipbreaker and grade for the workpiece material is decisive for process stability and longer tool life. When integrated into a coherent tooling strategy, these inserts support higher productive cutting windows and help to lower overall machining costs through fewer insert changes and improved first‑pass quality.

For reliable medium‑to‑heavy steel turning with Tungaloy quality, consult Metav Werkzeuge for application-specific recommendations and fast delivery — eMail: info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6780785
• Manufacturer SKU: TUN6780785
• SKU: 6780785-Tungaloy
• Designation: TNMG220412 T9225
• Material: Hartmetall
• Grade: T9225
• Series: ISO-Drehwendeschneidplatten
• Manufacturer: Tungaloy

Facts

• Corner radius: 1.2 mm
• Geometry angle: 60°
• Thickness: 4.76 mm
• Size: 22
• Hole: with cylindrical hole

Special features

• CVD‑coated carbide substrate
• Robust universal grade for medium-to-heavy steel turning
• Double-sided chipbreaker
• Triangular insert — three usable cutting edges per side
• ISO standardised format for broad holder compatibility
• Application: Turning

FAQ

What materials is this insert best suited to?
The TNMG220412 T9225 insert is formulated for medium-to-heavy steel machining, with the T9225 grade offering toughness for slightly interrupted cuts and varying engagement.

How many cutting edges are available per insert?
The triangular shape provides multiple usable edges; the TNMG220412 can be indexed to present fresh cutting edges as required, supporting cost-efficient use of each insert.

Does the insert require a specific holder type?
Compatibility depends on holder form, clearance angle, tolerance class, fastening and size; the TNMG220412 is ISO‑standard and fits holders designed for TNMG inserts with corresponding seat and screw arrangement.

What is the benefit of the CVD coating?
The CVD coating on the TNMG220412 enhances wear resistance and maintains edge geometry longer under abrasive conditions, improving repeatability and surface finish on steel components.

Can the chipbreaker type affect surface finish?
Yes; the double-sided chipbreaker on this insert promotes controlled chip formation and evacuation, which helps to achieve a consistent surface finish and reduces the risk of built-up edge.

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.