CNMG 120412 AH6225 Wendeplatten - Tungaloy

Combine high process reliability, a sharp yet stable cutting edge, and universal suitability for stainless steels; benefit from the economical double‑sided geometry and order directly via Metav Werkzeuge or consult our specialists for application advice.

CNMG 120412 AH6225 Tungaloy insert — PVD‑coated carbide for turning, 80° rhombic

A CNMG120412 AH6225 ISO‑compliant turning insert designed for medium turning of stainless steels, offering a balanced combination of durability and edge stability.

• ISO‑compliant CNMG 120412 geometry
• PVD‑coated carbide AH6225 for stainless steels
• Double‑sided insert with 1.2 mm corner radius
• Cylindrical hole and 80° rhombic form

Consistent performance on stainless steels for reduced rework

The CNMG120412 AH6225 insert is a PVD‑coated carbide grade developed for reliable machining of stainless steels. The coating and substrate combination delivers a sharp yet stable cutting edge, which reduces the risk of built‑up edge and improves dimensional consistency during medium cutting operations. This results in fewer interruptions for regrinding or replacement and supports a smooth production flow, particularly where varied batch sizes and mixed workpiece conditions are encountered.

Process security through thermally stable cutting and chip control

A principal advantage of this grade is its focus on process stability: the stable cutting edge and the double‑sided chipbreaker design promote predictable chip formation and evacuation under fluctuating conditions. This reduces unexpected tool wear and minimises downtime, supporting higher overall equipment effectiveness. The combination of reliable chip control and a wear‑resistant substrate delivers a convincing cost‑benefit over multiple tool changes.

ISO geometry and handling that save setup time

The insert’s ISO geometry and standard CNMG form ensure compatibility with a wide range of external holders and boring bars; the cylindrical hole simplifies clamping and repeatability. Key dimensions such as the 1.2 mm corner radius and 4.76 mm thickness contribute to robust edge strength while the 80° rhombic shape provides a balance between strength and accessibility in tight contours. These design elements reduce fitting errors and accelerate tool changeovers.

Recommended uses and system considerations for reliable results

Designed primarily for external and internal turning, this insert performs best in medium machining of stainless and similar alloys when combined with an appropriate holder and clamping set. Select the correct chipbreaker and match the grade to the workpiece stability to achieve optimal surface finish and tool life. The typical system comprises the ISO insert, a matched external holder or boring bar, a backing plate or clamp set and suitable screws for secure mounting.

Contact Metav Werkzeuge for application advice on Tungaloy AH6225 inserts and to confirm holder compatibility — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6946994
• Manufacturer SKU: TUN6946994
• SKU: 6946994-Tungaloy
• Series: ISO turning inserts
• Designation: CNMG120412 AH6225

Core data

• Shape: CNMG (rhombic), 80°
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 1.2 mm
• Relief angle: 0°

Design / special features

• Material: Carbide
• Coating: PVD
• Double‑sided insert
• Cylindrical hole
• Chipbreaker: double‑sided

FAQ

Which materials is this insert primarily intended for?
The CNMG120412 AH6225 insert is primarily designed for stainless steels and similar alloys; the PVD coating and substrate provide a good balance between edge sharpness and wear resistance.

Is the insert compatible with standard CNMG holders?
Yes, the ISO‑compliant CNMG geometry ensures compatibility with standard external holders and boring bars, provided the holder matches the insert form, thickness and clamping style.

What corner radius and thickness are supplied with the insert?
This insert features a 1.2 mm corner radius and a thickness of 4.76 mm, suitable for medium turning tasks where edge strength is required.

Can the insert be rotated to use the second cutting edge?
The insert is double‑sided, allowing indexed rotation to present a fresh cutting edge; this contributes to economical use over its service life.

How should the chipbreaker and grade be selected for different conditions?
Select the chipbreaker and the AH6225 grade based on workpiece stability and cutting parameters; the AH6225 offers versatile performance for variable conditions and is optimised for stainless steels.

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.