CNMG 120412 T515 Wendeplatten - Tungaloy

Take advantage of high productivity and reliable chip control thanks to the CVD-coated carbide T515 and the rhombic CNMG geometry; order the CNMG120412 T515 insert directly via Metav Werkzeuge or ask our consultants for tailored advice.

CNMG 120412 T515 CNMG for Turning – Tungaloy

A CNMG120412 T515 indexable insert designed for efficient external and internal turning, offering a rhombic geometry with an 80° orientation for stable cutting.

• CVD-coated carbide grade T515 for cast iron machining
• Rhombic CNMG geometry with 80° lead angle
• Double-sided chipbreaker for consistent chip control
• Central cylindrical hole for secure clamping

Maximum productivity for cast iron machining

The CVD-coated carbide grade T515 combines wear resistance with cost efficiency, making it particularly suitable for the economic machining of cast iron. The coating is applied to enhance tool life under typical turning parameters, so machining cycles can be extended before index changes are required. Selecting the appropriate chipbreaker and insert grade will reduce downtime and improve process stability, resulting in a measurable reduction in tooling costs per component.

Predictable results from precise geometry

A rhombic geometry with an 80° lead angle provides a predictable engagement with the workpiece, reducing deflection and helping to maintain dimensional accuracy. The corner radius 1.2 mm contributes to a stronger cutting edge and better surface finish on tangent paths, while the relief angle 0° supports robust turning in both external and internal operations. These geometric features are beneficial where repeatable tolerances and consistent surface quality are required in production workflows.

Better chip control and operational reliability

The insert’s double-sided chipbreaker is optimised for controlled chip formation during turning, which minimises risk of edge collapse and improves thermal stability at the cutting zone. The central cylindrical hole enables secure clamping and straightforward index changes on standard ISO-compatible toolholders. Together, these attributes enhance process safety and reduce the frequency of disruptive tool interventions, allowing for longer uninterrupted production runs.

System compatibility and straightforward integration

Designed as an ISO-standardised turning insert, this part integrates into common holder systems provided the holder matches in form, relief angle, tolerance class, fastening method, size and thickness. The insert’s thickness 4.76 mm and inscribed circle 12 mm are typical dimensions for CNMG types, facilitating replacement planning and inventory management in mixed-tooling environments. For interrupted cuts or unstable setups, the choice of chipbreaker and machine stability should be aligned with the grade’s capabilities to ensure consistent performance.

Contact Metav Werkzeuge for a detailed application check and availability of the CNMG120412 T515 insert; Metav Werkzeuge’s consultants can advise on holder compatibility and optimal cutting data

Technical data

• Article number: 6748711
• Manufacturer article number: 6748711
• Manufacturer SKU: TUN6748711
• SKU: 6748711-Tungaloy
• Material: Carbide
• Model series: ISO turning indexable inserts
• Designation: CNMG120412

Core technical data

• Corner radius: 1.2 mm
• Lead/approach angle: 80°
• Relief angle: 0°
• Thickness: 4.76 mm
• Inscribed circle: 12 mm
• Hole: cylindrical
• Double-sided insert

Special features

• CVD-coated carbide grade T515
• Optimised for cast iron machining
• Rhombic CNMG geometry for turning
• Double-sided chipbreaker for chip control
• ISO-standard compatibility for common holders
• Suitable for external and internal turning applications

FAQ

Which materials is this insert best suited for?
The CNMG120412 T515 Tungaloy insert is optimised for cast iron machining; the T515 grade offers economic performance on grey and nodular cast irons.

What does the 1.2 mm corner radius mean for component finish?
A 1.2 mm corner radius on the CNMG120412 provides a robust cutting edge that improves surface finish and increases edge strength, reducing the risk of chipping on interrupted cuts.

Is the insert single‑use or indexable on both sides?
This CNMG type is double-sided; both cutting edges can be indexed, doubling the available cutting edges per insert and improving tooling economy.

How is compatibility with toolholders ensured?
Compatibility depends on holder geometry, relief angle, tolerance class, fastening method, size and thickness; the insert follows ISO dimensions for CNMG formats to simplify selection.

Can the insert cope with interrupted cuts or unstable setups?
The T515 grade is intended for economic cast iron turning; for interrupted cuts or low-stability setups, selecting the correct chipbreaker and ensuring adequate machine rigidity will help maintain 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.