VNMG 160412 AH6225 Wendeplatten - Tungaloy

Taking advantage of the combination of PVD-coated carbide, a stable cutting edge and ISO compatibility ensures reliable machining of stainless steels with consistent surface quality and extended tool life; order the VNMG160412 AH6225 insert directly via Metav Werkzeuge or ask our consultants for application advice.

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

A VNMG160412 AH6225 indexable insert for ISO-compliant external and internal turning, optimised for medium‑cutting operations in stainless steels with a stable, sharp cutting edge.

• PVD-coated carbide grade AH6225
• Suited to stainless steels machining
• Rhombic 16 size with 35° lead angle
• Double-sided chipbreaker for stability
• Compatible with ISO VNMG holders

Consistent edge life through PVD coating and carbide substrate

The combination of a PVD-coated surface and a cemented carbide substrate provides balanced wear resistance and edge retention under varying conditions. The PVD layer reduces flank wear and extends cutting performance during medium‑duty turning, while the carbide core maintains toughness against intermittent loads. This pairing results in fewer insert changes and lower tooling-related downtime, contributing directly to improved process efficiency and predictable production cycles.

Improved control of chips and surface finish with designed geometry

A rhombic plate with a 35° lead angle and a 1.2 mm corner radius offers a compromise between cutting stability and surface quality. The double-sided chipbreaker is engineered to manage swarf formation and reduce built‑up edge when machining stainless steels, leading to more consistent part finishes and reduced secondary operations. Selection of the correct chipbreaker and grade helps avoid common issues such as material adhesion and chatter during both external and internal turning.

System compatibility and practical assembly guidance

As an ISO‑standard insert, compatibility with the toolholder is determined by form, clearance, tolerance class, fastening method, size and thickness. The insert is designed to sit in a matched holder together with an appropriate shim or clamp set and standard replacement screws; this modular approach simplifies inventory and replacement. The 0° clearance angle and a 4.76 mm plate thickness ensure secure clamping and repeatable seating, which supports reproducible machining results across batches.

Application focus and selection advice for production environments

This grade is formulated as a universal solution for stainless steels, offering a sharp yet stable cutting edge suited to varying conditions and medium feeds. For best results, pair the insert with a suitably rigid holder and select cutting parameters that account for stainless steel’s tendency to work‑harden. Choosing the right combination of feed, speed and coolant will maximise tool life and surface integrity while maintaining productivity in serial or jobbing work.

Contact Metav Werkzeuge today for personalised grade and chipbreaker recommendations for Tungaloy inserts and ensure the correct setup for your turning tasks — Metav Werkzeuge can advise on holder compatibility and cutting data.

Technical data

• Article number: 6890652
• Manufacturer SKU: TUN6890652
• Brand: Tungaloy
• Model series: ISO turning inserts
• Designation: VNMG160412 AH6225
• SKU: 6890652-Tungaloy

Facts

• Corner radius: 1.2 mm
• Plate size: 16 mm
• Plate thickness: 4.76 mm
• Lead angle: 35°
• Clearance angle: 0°

Special features

• PVD-coated cemented carbide grade AH6225
• Double-sided chipbreaker
• Rhombic plate form
• Cylindrical hole (with hole)
• ISO-standardised turning insert
• Designed for external and internal turning
• Suitable for machining stainless steels
• Compatibility requires matching holder, shim/clamp set and screws

FAQ

What materials is this insert intended for?
The VNMG160412 AH6225 insert is formulated primarily for stainless steels, providing a sharp yet stable cutting edge suitable for medium turning operations.

How does the PVD coating benefit machining performance?
The PVD coating on the AH6225 grade improves wear resistance and edge life, reducing flank wear and helping to maintain consistent surface quality during production runs.

Which geometric details influence holder compatibility?
Holder compatibility depends on the insert form, lead and clearance angles, tolerance class, fastening type, plate size (16 mm) and thickness (4.76 mm); all must match the corresponding VNMG holder specifications.

Is the chipbreaker reversible or single‑use?
The insert features a double-sided chipbreaker, allowing both cutting edges to be used before replacement, which improves cost efficiency in production.

What system components are required to mount the insert?
Proper assembly requires a compatible external holder or boring bar, an underlay/shim or clamp set and replacement screws to ensure secure, repeatable clamping of the 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.