CNMG 120412 T515 Tungaloy Wendeplatten - Tungaloy

Benefit from the combination of CVD‑coated carbide T515 and a 1.2 mm corner radius for economical, stable cast‑iron turning; order the insert directly via Metav Werkzeuge or consult our specialists for application guidance and holder compatibility.

CNMG 120412 T515 ISO turning insert for turning — Tungaloy

The CNMG120412 T515 indexable insert by Tungaloy is a rhombic ISO turning insert designed for reliable external and internal turning operations, optimised for cast‑iron applications.

• ISO rhombic insert CNMG 80° geometry
• CVD-coated carbide grade T515 for cast iron
• Double-sided chipbreaker for consistent chips
• Cylindrical-hole clamping, compatible with holders

Economical cast‑iron turning with consistent chip control

The insert's CVD‑coated carbide construction in grade T515 is formulated for the economical machining of cast iron. The coating improves resistance to built‑up edge and thermal wear, which in turn extends tool life and reduces changeover frequency. The integrated double‑sided chipbreaker promotes predictable chip formation, helping to maintain surface quality and reduce cycle interruptions during stable turning operations.

Straightforward integration with ISO holders and clamping systems

Designed to ISO dimensions, the rhombic geometry and cylindrical hole ensure secure clamping in common external holders and boring bars. Compatibility depends on form, relief angle and tolerance class of the holder; matching the insert’s 80° geometry and 0° relief with an appropriate clamping set delivers repeatable seating and stable cutting conditions. This simplifies tool inventory management and streamlines set‑up across multiple machines.

Durable performance from an optimised corner radius and plate thickness

The 1.2 mm corner radius balances edge strength with surface finish capability: it supports slightly heavier feeds without compromising the required finish, while the 4.76 mm plate thickness contributes to rigidity under load. For interrupted cuts or less rigid setups, the radius helps maintain edge integrity and reduces the risk of notch wear, offering a dependable compromise between productivity and component quality.

Practical selection advice for industrial turning tasks

Select this grade when machining grey or nodular cast iron at moderate to high cutting speeds where cost‑effective throughput is required. The combination of T515 and the insert’s geometry is particularly suitable where stable chip evacuation and predictable tool life are priorities. For unusual materials or extreme interruption, consult holder capabilities and consider alternative grades or edge preparations to match specific process demands.

Contact Metav Werkzeuge for application recommendations on the Tungaloy T515 grade and to confirm holder compatibility — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6793689
• Manufacturer SKU: TUN6793689
• SKU: 6793689-Tungaloy
• Model name: CNMG120412 T515
• Material: Carbide

Facts

• Corner radius: 1.2 mm
• Plate size: 12 mm
• Plate thickness: 4.76 mm
• Insert angle: 80°
• Clearance (relief) angle: 0°
• Hole: with cylindrical hole

Special features

• Grade: T515, CVD-coated
• Chipbreaker: double-sided
• Plate form: rhombic
• Application: Turning, cast iron machining
• Compatibility: ISO standard insert, requires compatible holder and clamp set

FAQ

Can the insert be used for both external and internal turning?
The CNMG120412 T515 insert is suitable for both external and internal turning when mounted in the correct external holder or boring bar that accepts ISO rhombic CNMG inserts.

What materials is the T515 grade intended for?
The T515 grade is a CVD‑coated carbide designed primarily for cast‑iron machining, providing a balance of tool life and productivity in typical cast‑iron turning operations.

How does the 1.2 mm corner radius affect cutting performance?
A 1.2 mm corner radius offers increased edge strength for higher feeds and improved resistance to notch wear while still permitting acceptable surface finish in most turning applications.

Is the insert reversible or single‑use per edge?
This is a double‑sided insert with a double‑sided chipbreaker, allowing multiple indexed edges for economical use; the CNMG format provides four usable cutting edges per insert in standard indexing practice.

Which clamping style is required for secure mounting?
The insert features a cylindrical hole and should be clamped with holders or clamp sets compatible with ISO CNMG inserts and cylindrical‑hole fixing for stable seating.

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.