CNMG 120408 AH6225 Wendeplatten - Tungaloy

Take advantage of a universally applicable, PVD-coated cemented carbide grade that combines a sharp, stable cutting edge with ISO conformity for reliable turning results; order the insert directly via Metav Werkzeuge or ask the consultants for application-specific guidance.

CNMG 120408 AH6225 Tungaloy Turning Insert — PVD-coated cemented carbide, 80° rhombic

CNMG 120408 AH6225 Tungaloy Turning Insert is an ISO-form insert designed for external and internal turning, offering a combination of durability and edge stability for medium machining of stainless steels

• ISO CNMG120408 rhombic plate
• PVD-coated cemented carbide AH6225
• Double-sided chipbreaker, with cylindrical hole
• 0.8 mm nose radius for medium turning

Reliable cutting performance for stainless steels

The AH6225 grade is a PVD-coated cemented carbide designed as a universal solution for stainless steels, delivering a balance between edge sharpness and toughness. The coated microstructure reduces adhesion tendencies common when machining corrosion-resistant alloys, which helps maintain cutting-edge integrity under varying cutting conditions. Conformity to ISO geometry ensures predictable fitment and interchangeability with standard toolholders, simplifying inventory and reducing set-up time. This results-oriented design supports consistent surface finish and process stability across batch and single-part production.

Improved chip control and stable seating for productive turning

A double-sided chipbreaker combined with a cylindrical hole and standard fixing format enhances chip control and improves clamping stability in the toolholder. The rhombic plate form with an 80° included angle and a 0° clearance specification yields robust engagement during facing and external turning, while the 0.8 mm nose radius enables a reliable compromise between surface quality and material removal rate. These geometric choices contribute to lower vibration, reduced tool wear and longer useful life, translating into measurable productivity gains on the shop floor.

Clear guidance for selection and system compatibility

Compatibility of the insert with a holder depends on geometry, clearance angle, tolerance class, fixing, size and thickness; the ISO designation and plate dimensions allow straightforward matching to common external holders and boring bars. The insert is suitable for both external and internal turning operations when combined with an appropriate clamping plate, backing pad and screw set. For mixed production environments where material and stability vary, the AH6225 grade offers process reliability and repeatable results. For additional application advice or cutting-parameter recommendations, consult Metav Werkzeuge’s technical advisers who can help specify the correct chipbreaker and holder combination.

Contact Metav Werkzeuge for tailored tooling recommendations and availability of the CNMG120408 AH6225 insert; technical consultants are available to advise on holder compatibility and cutting parameters

Technical Data

• Article number: 6946856
• SKU: 6946856-Tungaloy
• Manufacturer SKU: TUN6946856
• Model series: ISO-Drehwendeschneidplatten
• Material: Hartmetall
• Manufacturer: Tungaloy

Facts

• ISO designation: 120408
• Plate size: 12 mm
• Plate thickness: 4.76 mm
• Angle: 80°
• Clearance angle: 0°
• Nose radius: 0.8 mm

Special features

• Grade: AH6225 (PVD-coated)
• Plate shape: rhombic
• Hole: with cylindrical hole
• Chipbreaker: double-sided
• Application: Turning
• Compatibility determined by form, clearance, tolerance, fixing, size and thickness

FAQ

Which materials is this insert best suited for?
The AH6225 grade is intended as a universal solution for machining stainless steels; the CNMG 120408 AH6225 Tungaloy turning insert (SKU 6946856-Tungaloy) performs well under medium cutting conditions and variable material batches.

Can the insert be indexed to use both edges?
Yes, the insert features a double-sided chipbreaker design that allows indexing to a fresh cutting edge, extending the effective service life of the insert.

How does the geometry affect holder compatibility?
Compatibility depends on plate form, clearance angle, tolerance class, fixing style, size and thickness; the ISO CNMG120408 designation streamlines matching to standard ISO holders and clamping systems.

What surface finish and applications are recommended with a 0.8 mm nose radius?
A 0.8 mm radius offers a balance between finish and material removal rate, suitable for medium turning where modest surface quality and stable cutting are required.

Is the coating beneficial for wear resistance?
The PVD coating on the AH6225 grade increases wear resistance and reduces built-up edge formation when machining stainless steels, resulting in more consistent tool life and process reliability.

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.