VNMG 160412 AH6225 Wendeplatten - Tungaloy

Consistent machining quality is achieved by the combination of the AH6225 grade, a PVD‑coated carbide substrate and a stable 1.2 mm corner radius, delivering reliable edge life and repeatable finishes; order the VNMG160412 AH6225 insert directly via Metav Werkzeuge or ask our consultants if needed.

VNMG160412 AH6225 Tungaloy turning insert — PVD‑coated carbide, 35° lead angle

The VNMG160412 AH6225 is an ISO‑standard, rhombic indexable insert designed for external and internal turning of stainless steels, featuring a double‑sided chipbreaker and a cylindrical hole for secure clamping

• ISO rhombic form VNMG insert
• PVD‑coated carbide grade AH6225
• Double‑sided chipbreaker for indexing
• 35° lead angle for stable cutting

High‑performance grade for stainless steel turning

The combination of a PVD‑coated surface layer and a cemented carbide substrate in the AH6225 grade provides a balanced mix of wear resistance and edge sharpness, suited for the demands of turning stainless steel. The coated surface improves heat resistance and reduces built‑up edge tendencies, while the substrate maintains edge stability under moderate cutting conditions. Specified with a 1.2 mm radius, the geometry supports consistent chip formation and prolongs life when intermittent cuts or variable feeds occur, resulting in fewer tool changes and more predictable production cycles.

Indexable design that eases mounting and reduces downtime

This insert is produced to ISO dimensions and a rhombic shape, so compatibility is governed by the holder form, clearance angle, tolerance class, fixing method, size and thickness. The cylindrical hole with a 0° relief angle ensures reliable seating and repeatable clamping torque when used with matching external holders or boring bars, while the double‑sided chipbreaker allows two usable edges per index. Because the system comprises the insert, a suitable holder, a clamp set and replacement screws, set‑up time is minimised and maintenance routines are straightforward, supporting efficient workflow on the shop floor.

Process security and economic benefits in daily production

Selecting the correct chipbreaker and the universal AH6225 grade delivers better process security and a consistent surface finish when turning a variety of stainless alloys. The insert’s 35° lead angle softens cutting forces, improving stability on slender part geometries and during internal turning. For manufacturers seeking productivity gains, the indexable format and robust PVD coating reduce frequency of tool changes and scrap, while the predictable wear behaviour contributes to reproducible component tolerances and reduced rework. These attributes suit production shops and jobbers who require reliability and repeatable performance from their tooling.

For technical advice or to request a supply, contact Metav Werkzeuge — Metav Werkzeuge can advise on holder compatibility and process parameters; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6947447
• SKU: 6947447-Tungaloy
• Manufacturer SKU: TUN6947447
• Model series: ISO turning inserts
• Article name: VNMG160412 AH6225 Tungaloy insert

Facts

• Shape: rhombic (VNMG)
• Size: 16 mm
• Corner radius: 1.2 mm
• Lead angle: 35°
• Relief angle: 0°
• Hole style: cylindrical hole
• Double‑sided chipbreaker
• Material: cemented carbide
• Coating: PVD

Special features

• Grade AH6225 — universal for stainless steels
• PVD‑coated carbide for improved heat and wear resistance
• Indexable, double‑sided for economy of use
• Compatible with ISO‑standard external holders and boring bars
• Intended for external and internal turning
• System components: insert, holder, clamp set and replacement screws

FAQ

What materials is this insert intended for? This insert is specified for turning stainless steel and the AH6225 grade is optimised to provide a sharp, yet stable, cutting edge under variable conditions.

How does the double‑sided chipbreaker affect runtime? The double‑sided chipbreaker allows indexing to a fresh edge, effectively doubling the number of usable cutting edges and reducing tooling costs per component when using the VNMG160412 AH6225 insert.

Which holder features ensure compatibility with this VNMG insert? Compatibility is determined by holder form, clearance angle, tolerance class, fixing method, size and thickness; use a matching ISO VNMG holder with appropriate clamp set and screws for secure mounting.

What advantages does the PVD coating bring to everyday machining? The PVD‑coating improves wear resistance and thermal stability, reduces built‑up edge on sticky alloys and supports consistent surface quality across production batches.

Is the insert suited to internal boring as well as external turning? Yes, the insert’s geometry and 35° lead angle make it suitable for both external and internal turning operations when used with appropriate holders.

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.