VNMA 120404 T515 Wendeplatten - Tungaloy

Take advantage of CVD-coated carbide performance and ISO compatibility to improve cycle times and maintain stable chip formation during turning; the combination of a 0.4 mm corner radius and T515 grade offers a balance of edge strength and economical wear behaviour. Order directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

VNMA 120404 T515 ISO turning indexable insert for turning — Tungaloy

The VNMA120404E T515 is an ISO-standard indexable insert designed for general external and internal turning operations, optimised for economical machining of cast iron and compatible with standard ISO holders.

• CVD-coated carbide grade T515
• Optimised for cast iron machining
• ISO rhombic insert, 12 mm size
• 0.4 mm corner radius for balanced edge strength

Increased productivity through a CVD-coated carbide grade

The combination of a CVD-coated cemented carbide substrate and the T515 grade provides reliable wear resistance and consistent cutting behaviour under typical turning conditions. This enables longer tool life compared with uncoated grades and supports higher cutting speeds where machine and setup stability allow. For shops prioritising throughput and predictable regrind intervals, the coated substrate helps maintain a stable cutting edge and reduces unplanned tool changes, which in turn supports leaner production workflows.

Compatibility and mounting for assured fit and function

Manufactured to ISO dimensions, the insert is an indexable rhombic plate with a 12 mm nominal size, 4.76 mm thickness and a cylindrical centre hole, so compatibility with clamping systems depends on form, clearance angle, tolerance class, fixing method, size and thickness of the holder. The specified 0° clearance angle and the insert geometry require a matching external holder or boring bar designed for rhombic plates; using the correct holder ensures correct rake, support and repeatable positioning. For process planning, confirm holder compatibility and tolerance class to avoid misfits and to secure the expected cutting performance.

Practical machining benefits and selection guidance

A 0.4 mm corner radius offers a compromise between edge robustness and form accuracy: it increases edge strength for interrupted cuts while still delivering acceptable surface finish on most cast iron grades. The insert has no preformed chipbreaker, so chip control should be achieved via grade selection, cutting parameters and coolant strategy; the T515 grade is tuned for economical cast iron cutting where moderate feed rates and steady chip evacuation are typical. When choosing inserts for specific operations, consider workpiece material, rigidity and desired surface finish; selecting an appropriate chip control solution or a matching insert geometry will safeguard process reliability and part quality.

Contact Metav Werkzeuge for personalised application advice and fast supply of Tungaloy VNMA120404E T515 turning inserts; email info@metav-werkzeuge.com or call +49 2822 7131930 for technical guidance and availability

Technical data

• Article number: 6760170
• SKU: 6760170-Tungaloy
• Manufacturer SKU: TUN6760170

Facts

• Grade/designation: T515
• Material: cemented carbide
• Coating: CVD
• Corner radius: 0.4 mm
• Thickness: 4.76 mm
• Size: 12 mm
• Clearance angle: 0°
• Insert geometry angle: 35°

Special features

• ISO rhombic insert form
• With cylindrical centre hole
• No chipbreaker
• Intended application: turning
• Model series: ISO turning indexable inserts

FAQ

What materials is this insert best suited to machine?
The VNMA120404E T515 insert is optimised for cast iron machining; the T515 grade and CVD coating balance wear resistance and economy for that material.

Does the insert require a specific holder type?
Compatibility is achieved with ISO-standard holders for rhombic inserts; the plate’s form, 0° clearance angle, thickness and central cylindrical hole determine the required holder configuration.

How does the 0.4 mm corner radius affect performance?
A 0.4 mm corner radius increases edge strength for interrupted cuts and prolongs edge life while maintaining reasonable surface finish for most turning operations.

Is a chipbreaker included with this insert?
This insert is supplied without a chipbreaker, so chip control must be managed through grade selection, cutting parameters and appropriate coolant or external chip-control measures.

Can this insert be used for internal turning as well as external operations?
Yes; the ISO geometry and central hole allow use in suitable external holders and boring bars for internal and external turning where the insert size and holder clearance permit.

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.