CNMG 120412 T9215 Wendeplatten - Tungaloy

Take advantage of the CVD-coated carbide T9215 for high wear resistance together with the stable 80° rhombic geometry and a double-sided chipbreaker to keep production running reliably. Order the insert directly via Metav Werkzeuge or ask the consultants for application support.

CNMG 120412 T9215 — ISO turning insert for external and internal turning, Tungaloy

The CNMG120412 T9215 is an ISO-standard rhombic turning insert engineered for medium steel machining, combining a CVD-coated carbide grade with a controlled chipbreaker for productive, repeatable turning operations.

• CVD-coated carbide grade T9215
• Optimised for mid-range steel machining
• Rhombic CNMG 80° geometry with hole
• Double-sided chipbreaker, radius 1.2 mm

Increased productivity through wear-resistant grade and coating

The CVD-coated carbide composition T9215 delivers enhanced wear resistance without sacrificing toughness, making it well suited to continuous and mildly interrupted cuts in mid-range steel. The coating process deposits hard ceramic layers onto the substrate, which reduces flank and crater wear and thereby extends useful edge life. This combination of substrate and finish is intended to support consistent machining cycles and fewer insert changes, contributing to more efficient setup times and predictable tool costs.

Secure clamping and dimensional conformity for reliable results

Built to ISO dimensions, the rhombic plate with its 80° geometry and cylindrical hole ensures repeatable seating and stable clamping in compatible holders. The insert’s 4.76 mm thickness and defined tolerance class provide the required rigidity for external and internal turning, while the 1.2 mm corner radius offers a balance between strength and edge definition. Compatibility with a matching outer holder or boring bar, plus the correct shim and clamp set, reduces vibration and supports consistent surface finish and dimensional control.

Effective chip control for process stability and surface quality

The double-sided chipbreaker is designed to manage swarf generation in typical steel-cutting scenarios, improving chip evacuation and reducing the risk of chip re-cutting. Stable chip formation helps to protect the cutting edge from unexpected loads, which in turn supports uniform workpiece surfaces and reduces rework. For production environments aiming for steady throughput, this chip control feature translates directly into fewer interruptions and a more manageable machining process.

System-level guidance for selection and handling

The insert is intended to be used as part of a system: ISO insert, suitable external holder or boring bar, plus underlay/clamp sets and replacement screws. Select the chipbreaker and T9215 grade according to workpiece material, depth of cut and machine-tool rigidity. As a double-sided insert, indexing the other cutting edge when wear occurs extends tool life and improves cost-effectiveness. Basic handling practice—correct torque for the clamp screw and verified seat cleanliness—ensures the intended performance and reduces the likelihood of edge damage.

For fast availability and practical application advice on the Tungaloy CNMG 120412 T9215 insert, contact Metav Werkzeuge for tailored recommendations and stock information.

Technical data

• Article number: 6775273
• SKU: 6775273-Tungaloy
• Manufacturer SKU: TUN6775273
• Model series: ISO turning inserts
• Material: carbide

Facts

• Corner radius: 1.2 mm
• Insert angle: 80°
• Plate thickness: 4.76 mm
• Plate size: 12 mm
• Relief angle: 0°

Special features

• CVD-coated carbide grade T9215
• Rhombic plate form (CNMG)
• Double-sided chipbreaker
• With cylindrical hole
• ISO-standardised geometry
• Application: turning (external and internal)
• System components: insert, holder/boring bar, shim/clamp set, replacement screws

FAQ

What materials is this insert best suited for?
The T9215 grade in the CNMG120412 insert is specified as a first choice for medium steel machining, combining wear resistance and fracture toughness for productive steel turning.

How does the ISO conformity affect holder selection?
ISO standard dimensions mean compatibility depends on geometry, relief angle, tolerance class, fastening method, size and thickness; the CNMG form and 80° angle require a matching CNMG holder or boring bar.

Can the insert be indexed to use both sides?
Yes, the double-sided design allows indexing to the second edge after wear, effectively doubling the usable cutting edges and improving tool economy.

What role does the CVD coating play?
The CVD-coated carbide provides a hard, wear-resistant surface layer that reduces flank and crater wear, helping to maintain edge geometry and extend insert life under typical turning conditions.

Which components complete the system for safe clamping?
A compatible external holder or boring bar, plus an underlay or clamp set and the correct replacement screws, are required to secure the CNMG120412 insert and ensure the expected machining stability and repeatability.

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.