CNMG 120416 AH6225 Wendeplatten - Tungaloy

High-performance PVD-coated carbide and a robust 80° rhombic geometry deliver consistent chip control and long tool life in stainless steel turning; combine dependable edge stability with economical double-sided indexing for steady production. Order original Tungaloy inserts via Metav Werkzeuge or consult our team for holder compatibility and application advice.

CNMG120416 AH6225 — ISO turning insert, PVD-coated carbide, Tungaloy

The CNMG120416 AH6225 is an ISO‑standard rhombic turning insert designed for external and internal turning, optimised for machining stainless steels in medium‑duty, variable conditions.

• ISO rhombic CNMG 80° geometry
• PVD-coated AH6225 carbide grade
• Optimised for stainless steels
• Double-sided chipbreaker with central hole

Consistent edge life and material suitability for stainless steels

The insert’s AH6225 grade combines a sharp yet stable PVD‑coated carbide cutting edge with a composition tuned for stainless steels. The PVD coating increases wear resistance and helps maintain edge integrity under intermittent cutting and varying feeds, resulting in fewer indexings and longer in‑machine life. For production environments this means reduced tool changes and more predictable process windows; explained simply, the coating acts as a thin, hard barrier that slows abrasion and thermal degradation at the cutting zone.

Predictable seating and economical indexing through standard geometry

Built to the ISO standard, the rhombic form with an 80° included angle and a 0° relief ensures reliable seating in matching CNMG holders. The central cylindrical hole allows secure fastening while the double‑sided design offers two usable cutting edges, improving cost efficiency per insert. With a plate thickness of 4.76 mm and a 12 mm size, the component provides a stable clamping interface; the standardised dimensions simplify tool inventory and make holder compatibility straightforward when the correct holder type, tolerance class and fastening are selected.

Improved chip control and balanced finish for medium turning

The integrated double‑sided chipbreaker is designed to support controlled chip formation across a range of feeds, reducing the risk of entanglement and improving surface quality. The 1.6 mm corner radius gives a compromise between strength and finish: it sustains the cutting edge in interrupted cuts while still enabling a good surface on external contours. For applications requiring repeatable results in stainless steel turning, this combination of radius, breaker geometry and grade delivers both stability and a consistent surface texture.

For reliable stainless steel turning with the AH6225 grade, contact Metav Werkzeuge for original Tungaloy inserts and tailored cutting advice — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6947015
• SKU: 6947015-Tungaloy
• Manufacturer SKU: TUN6947015
• Manufacturer: Tungaloy
• Model series: ISO turning inserts
• Material: Carbide

Facts

• Corner radius: 1.6 mm
• Cutting angle: 80°
• Relief angle: 0°
• Plate thickness: 4.76 mm
• Plate size: 12 mm
• Hole style: cylindrical hole

Special features

• PVD-coated carbide (AH6225)
• Double-sided chipbreaker
• Rhombic insert shape (CNMG)
• With central cylindrical hole
• For external and internal turning (Drehen)
• Universal grade optimised for stainless steels
• ISO-compatible insert

FAQ

What materials is this insert suitable for? The CNMG120416 AH6225 insert is optimised for stainless steels and performs well in variable cutting conditions typical of those alloys.

How is the insert fastened and seated in the toolholder? The insert uses a central cylindrical hole for secure fastening; correct seating depends on matching the ISO CNMG geometry, tolerance class and holder type.

Can the insert be indexed to use multiple edges? Yes, the insert is double‑sided and indexable, providing two cutting edges per insert to improve economy and reduce tool changes.

What does the 1.6 mm corner radius mean for machining? A 1.6 mm radius offers a good balance between edge strength and surface finish, suitable for medium turning where occasional interruptions or variable feeds occur.

Is this grade suitable for finishing passes? The AH6225 grade is designed for medium machining; for fine finishing, consider smaller radii or grades tailored specifically for finishing operations.

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.