VNMG 120404 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD-coated carbide grade optimised for stainless steels, a stable SM chipbreaker, and ISO compatibility for consistent production results. Order the VNMG120404E-SM AH6225 directly via Metav Werkzeuge or ask our consultants if needed.

VNMG 120404 AH6225 — Indexable turning insert, PVD-coated carbide, SM chipbreaker (Tungaloy)

VNMG120404E-SM AH6225 is an ISO-standard rhombic indexable insert for external and internal turning, designed for stable cutting on stainless steels with a balanced edge life and surface quality

• PVD-coated carbide grade AH6225
• SM chipbreaker optimised for stainless steels
• Rhombic VNMG form with 35° approach angle
• 0.4 mm corner radius for reliable finishing

Consistent performance for stainless-steel turning

The combination of a PVD-coated surface and a modern carbide substrate provides consistent edge strength and wear resistance during medium-duty machining. The chosen grade, AH6225, is formulated as a universal option for stainless steels, offering a sharp yet robust cutting edge that reduces the risk of built-up edge under changing conditions. This balance results in steadier cutting forces and improved cycle-time predictability, helping to maintain throughput without frequent insert changes.

Predictable mounting and compatibility with ISO tooling

As an ISO-indexable insert, compatibility with the toolholder depends on form, relief angle, tolerance class, clamping method, size and thickness. The rhombic VNMG geometry with a cylindrical hole enables positive clamping in standard external holders or boring bars designed for VNMG plates. Specifying the correct tolerance class and ensuring the holder matches the 4.76 mm plate thickness and 12 mm inscribed circle guarantees repeatable seating, stable cutting and straightforward index changes for minimal downtime.

Improved chip control and surface quality in practice

The SM chipbreaker is tailored for ductile and work-hardenable materials often encountered with stainless steels; it assists in breaking chips into manageable segments and reduces the tendency for long, stringy chips. Combined with a 0.4 mm corner radius and the 35° approach angle, the geometry supports fine finishing operations while maintaining edge stability during interrupted cuts. For shops requiring versatile inserts that perform across varying cutting conditions, this design reduces manual rework and contributes to consistent part quality.

Discuss Tungaloy turning solutions with Metav Werkzeuge today — our specialists can advise on holder selection, cutting data and immediate availability to support production demands

Technical Data

• Article number: 6903235
• Manufacturer SKU: TUN6903235
• Stock SKU: 6903235-Tungaloy
• Model series: ISO indexable turning inserts
• Name: VNMG120404E-SM AH6225

Facts

• Grade / designation: AH6225
• Substrate / material: carbide
• Coating: PVD
• Corner radius: 0.4 mm
• Inscribed circle: 12 mm
• Plate thickness: 4.76 mm
• Relief angle: 0°
• Approach/lead angle: 35°
• Hole: with cylindrical hole

Special features

• SM chipbreaker
• Rhombic VNMG geometry
• ISO-standardised insert
• Intended application: turning (external and internal)
• Optimised for stainless steels
• Compatible with matching ISO holders and boring bars

FAQ

What materials is this insert best suited for?
The AH6225 grade is a universal, PVD-coated carbide specifically formulated for stainless steels, providing a balance of sharpness and edge stability for medium cutting conditions.

Which turning operations are recommended with this insert?
This rhombic VNMG insert is suitable for both external and internal turning operations and is frequently used where good surface finish and predictable tool life are required.

How does the SM chipbreaker affect machining?
The SM chipbreaker promotes segmenting of chips when machining ductile materials like stainless steels, reducing long chip formation, helping secure consistent surface quality and easing chip evacuation.

How can I ensure the insert fits my holder?
Compatibility is determined by the insert form, relief angle, tolerance class, clamping method, size and thickness; matching these parameters to the toolholder ensures correct seating and stable performance.

What are the key geometry values to consider for process planning?
Important values include the 0.4 mm corner radius, 12 mm inscribed circle, 4.76 mm thickness and 35° approach angle; these influence cutting forces, surface finish and rigidity.

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.