CNMG 120408 AH8015 Wendeplatten - Tungaloy

The combination of a PVD-coated AH8015 grade and the ISO CNMG geometry delivers a balance of wear resistance and cutting-edge stability for consistent production. Order original Tungaloy indexable inserts via Metav Werkzeuge or consult our specialists for tailored recommendations.

CNMG 120408 AH8015 CNMG turning insert, ISO CNMG120408 geometry — Tungaloy

The CNMG120408 AH8015 is an ISO-standard, rhombic turning insert engineered for external and internal turning of heat-resistant alloys, offering a PVD-coated carbide grade for reliable performance in general machining.

• ISO CNMG120408 geometry for stable clamping
• PVD-coated AH8015 for heat-resistant alloys
• Double-sided chipbreaker, reversible use
• Cylindrical hole, compatible with ISO holders

Consistent cutting performance for demanding alloys

The PVD-coated AH8015 carbide grade provides a predictable mix of wear resistance and edge stability, making it a dependable choice for machining heat-resistant alloys. The coating helps to reduce adhesion and thermal softening at the cutting edge, which in turn supports longer tool life and fewer interruptions for insert changes. For production-focused operations, this balance translates into improved process reliability and a more consistent surface finish on machined components.

Geometry and dimensions that simplify setup and compatibility

The ISO CNMG120408 form and rhombic shape ensure compatibility with the majority of ISO-standard external holders; compatibility is governed by form, relief angle, tolerance class, fastening method, size and thickness. Key geometry features such as the 80° cutting angle, corner radius 0.8 mm and a plate thickness of 4.76 mm contribute to stable cutting behaviour and predictable chip formation. The insert’s cylindrical hole and standard dimensions ease mounting and replacement, reducing set-up time during tool changes.

Machining benefits from a double-sided chipbreaker

The double-sided chipbreaker design allows the insert to be reversed and reused, which reduces inventory needs and increases effective cutting edges per insert. This feature supports efficient chip control during both roughing and finishing passes, improving process security and helping to avoid built-up edge in sticky, temperature-resistant materials. In practice, the insert’s chip control characteristics support a reliable material flow away from the cutting zone, which contributes to predictable cycle times and better surface quality.

System-level considerations for stable production

An indexable turning system is more than a single component: it comprises the insert, a matching external holder or boring bar, a clamping plate or clamping kit, and replacement screws. The insert’s ISO conformity and standardised hole style enable straightforward integration into existing toolholder systems; attention to holder rigidity and correct clamping torque will preserve the insert’s edge life and dimensional accuracy. For first-time selection, choosing the appropriate chipbreaker and grade for the workpiece material and machining strategy will help to maximise productivity while controlling tool costs.

Order original Tungaloy inserts through Metav Werkzeuge for reliable, application-oriented supply — contact info@metav-werkzeuge.com or call +49 2822 7131930 for advice and rapid fulfilment

Technical data

• Article number: 6946966

• SKU: 6946966-Tungaloy

• Manufacturer SKU: TUN6946966

• Manufacturer: Tungaloy

• Model series: ISO-Drehwendeschneidplatten

• Material: carbide

Numbers / Core technical data

• ISO designation: 120408

• Plate size: 12

• Plate thickness: 4.76 mm

• Corner radius: 0.8 mm

• Relief angle: 0°

• Cutting angle: 80°

Special features / Versions

• Grade/coating: PVD-coated AH8015

• Chipbreaker: double-sided

• Hole style: cylindrical hole

• Shape: rhombic

• Typical application: external and internal turning

• System components: insert, matching holder or boring bar, clamping plate/clamping kit, replacement screws

FAQ

What materials is this insert suited for?
The CNMG120408 AH8015 insert is designated as a first-choice grade for the general machining of heat-resistant alloys, offering a balanced combination of wear resistance and edge stability.

How does the ISO geometry affect holder compatibility?
ISO CNMG geometry determines compatibility through form, relief angle, tolerance class, fastening, size and thickness; the CNMG120408 format and cylindrical hole are compatible with standard ISO external holders when these parameters match.

What advantage does the double-sided chipbreaker provide?
A double-sided chipbreaker allows reversible use of the insert, increasing the number of available cutting edges, improving chip control and reducing the need for varied inventory in serial production.

Which dimensions are most relevant when selecting a holder?
Relevant dimensions include the plate size (12), plate thickness (4.76 mm), corner radius (0.8 mm), relief angle (0°) and the ISO code 120408 — these ensure correct seating and clamping in the holder.

Is the AH8015 grade coated and what benefit does the coating bring?
The AH8015 grade is PVD-coated, which enhances surface hardness and thermal resistance of the cutting edge, contributing to longer life and more consistent cutting in demanding materials.

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.