CNMG 120408 AH8015 Wendeplatten - Tungaloy

Take advantage of the combination of high wear resistance, consistent chip control and ISO compatibility for productive turning operations; order the inserts through Metav Werkzeuge or consult their specialists for application advice.

CNMG 120408 AH8015 indexable turning insert for turning — Tungaloy

The CNMG120408 AH8015 is an ISO-standard, rhombic indexable insert designed for general external and internal turning of heat-resistant alloys, offering a balanced mix of wear resistance and edge stability.

• CNMG rhombic form, ISO 120408
• PVD-coated carbide AH8015 grade
• 0° relief angle, 80° included angle
• Double-sided insert with cylindrical hole

High-performance grade for heat-resistant alloys and balanced wear control

The AH8015 grade is a PVD-coated carbide designed as a first choice for general machining of heat-resistant alloys, delivering an effective compromise between wear resistance and cutting-edge stability. The coating reduces adhesion and thermal softening at elevated cutting temperatures, which helps to maintain a consistent flank condition and extend effective tool life. For shops working with hot alloys, this combination reduces the frequency of index changes and supports steady cycle times while preserving dimensional accuracy and surface quality.

ISO conformity and secure mounting for consistent results

Produced to the ISO designation 120408, the insert’s rhombic geometry and cylindrical hole ensure compatibility with a wide range of external holders and boring bars when matched by form, clearance angle, tolerance class, fastening and thickness. The double-sided design offers economical indexability: after one edge reaches its wear limit the insert can be rotated, doubling the number of usable cutting edges. Correct matching of holder seat geometry and clamp system is essential to transfer cutting forces reliably and to preserve the insert’s cutting edge integrity during interrupted cuts.

Practical benefits for productivity, chip control and surface finish

The combination of the insert’s geometry, 0° relief angle and an appropriately selected chipbreaker supports controlled chip formation in many turning scenarios, reducing the risk of tangling in internal bores or long, slender workpieces. Stable cutting edges and the AH8015 grade translate into longer uninterrupted runs and fewer tool exchanges, which improves overall machine uptime and lowers unit costs per component. Where a precise surface texture is required, the insert’s edge stability contributes to repeatable finish quality across batch production.

For specific machining recommendations, stock availability or to identify the matching holder and clamping set for this insert, contact Metav Werkzeuge by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930 — the Metav Werkzeuge team will advise on the best configuration for the intended turning application.

Technical data

• Article number: 6925050
• SKU: 6925050-Tungaloy
• Manufacturer SKU: TUN6925050
• Model series: ISO-Drehwendeschneidplatten
• Material: Cemented carbide
• Grade/coating: AH8015, PVD-coated

Facts

• Insert designation: CNMG120408
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Included angle: 80°
• Relief angle: 0°
• Hole style: cylindrical

Special features

• Rhombic insert geometry
• Double-sided, reversible use
• Cylindrical fixing hole
• Designed for turning (external and internal)
• Balanced wear resistance and edge stability
• Compatible with ISO-standard holders
• Chipbreaker: double-sided

FAQ

What materials is this insert suitable for?
The CNMG120408 AH8015 insert is intended primarily for machining heat‑resistant alloys; the PVD-coated grade balances wear resistance and edge stability for general turning tasks.

How is the insert mounted in a holder?
The insert fits ISO-compatible holders that accept CNMG 120408 geometry; correct matching of seat form, clamp and tolerance class is required to ensure secure fixation and reliable cutting performance.

Can the insert be indexed when one edge wears?
Yes, the insert is double-sided and reversible, allowing a second cutting edge to be used after one edge reaches its wear limit, effectively increasing the number of usable edges.

Does the AH8015 grade provide good surface finish?
The AH8015 grade and the insert geometry support stable cutting conditions, which contributes to repeatable surface quality and reduced need for rework when cutting heat‑resistant alloys.

What is the SKU and manufacturer article number for ordering?
The insert is listed as SKU 6925050-Tungaloy with manufacturer article number 6925050; reference these identifiers when specifying the CNMG120408 AH8015 Tungaloy indexable insert.

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.