CNMG 090408 AH6225 Wendeplatten - Tungaloy

Benefit from the combination of a universal AH6225 PVD-coated carbide grade, an ISO CNMG 090408 rhombic form and a double-sided chipbreaker for stable, repeatable stainless-steel turning; order the insert directly via Metav Werkzeuge or consult our specialists for application support.

CNMG090408 AH6225 Tungaloy insert — ISO turning insert for stainless-steel machining

The CNMG090408 AH6225 Tungaloy insert is an ISO-standard rhombic turning insert designed for external and internal turning, offering a 0° clearance angle and a balanced edge for medium machining conditions.

• ISO CNMG 090408 rhombic insert
• PVD-coated carbide AH6225 for stainless steel
• Double-sided chipbreaker for stable cutting
• 0.8 mm corner radius, 0° clearance angle

Consistent machining quality for stainless steels

The AH6225 grade is a PVD-coated carbide designed as a universal solution for stainless-steel applications, delivering a sharp yet stable cutting edge under varying conditions. The composition of the grade favours controlled wear and good edge integrity, which helps maintain dimensional accuracy across batch runs. Using this rhombic form contributes to a predictable chip flow and repeatable results when paired with a matching ISO turning holder. The combination of grade and geometry is particularly effective in shops that require a compromise between tool life and surface finish, enabling cost-effective production without sacrificing quality.

Reliable chip control and secure clamping for productivity

A double-sided chipbreaker and a cylindrical hole for secure screw fixation improve process reliability by guiding chips away from the cutting zone and ensuring stable clamping during interrupted cuts. Compatibility with the clamping system depends on insert form, free clearance angle, tolerance class, fixation type, size and thickness — these parameters ensure correct seating and repeatable run-out. The ISO system setup normally includes the insert, a suitable external holder or boring bar, a clamping pad/kit and replacement screws; this modular approach simplifies inventory management and reduces downtime for changeovers.

Practical advantages in the workshop and application tips

The 0.8 mm corner radius gives a balanced performance between edge strength and the ability to achieve decent surface finishes; the 4.76 mm plate thickness and rhombic geometry support moderate depths of cut in medium-duty turning. Select the chipbreaker style and grade according to material, machining mode and rigidity of the set-up: choose the AH6225 grade for variable stainless-steel work and aim for stable clamping and moderate cutting parameters to extend tool life. The ISO designation facilitates quick matching with standard toolholders, helping to streamline tool change procedures and improve overall process security while maintaining consistent surface quality.

For machining tasks that demand a dependable balance of edge stability and versatility, contact Metav Werkzeuge for ordering and application advice regarding the Tungaloy CNMG090408 AH6225 insert; email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss suitable holders and optimal cutting parameters.

Technical data

• Article number: 6903160
• Manufacturer SKU: TUN6903160
• Our SKU: 6903160-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Material: carbide

Facts

• Corner radius: 0.8 mm
• Plate thickness: 4.76 mm
• Insert size: 09
• Geometry code: 090408
• Included angle: 80°
• Clearance angle: 0°

Special features

• Grade: AH6225 (PVD-coated carbide)
• Shape: CNMG 090408, rhombic insert
• Hole: with cylindrical hole
• Chipbreaker: double-sided
• Application: turning (external and internal)
• Compatibility: ISO-standard holders and clamping kits

FAQ

What materials is this insert suitable for?
The CNMG090408 AH6225 Tungaloy insert is formulated primarily for stainless-steel machining and performs well in a range of medium-duty turning operations where a stable, sharp cutting edge is required.

How does the chipbreaker affect performance?
The double-sided chipbreaker promotes controlled chip formation and evacuation, improving surface finish and reducing the risk of recutting; the insert’s geometry supports reliable chip flow during both continuous and interrupted cuts.

Which holders are compatible with this ISO insert?
Compatibility is determined by the insert form, clearance angle, tolerance class, fixation type, size and thickness; the CNMG 090408 form fits standard ISO CNMG holders and compatible boring bars when used with the correct clamping pad and screws.

What benefits does the AH6225 grade offer in practice?
AH6225 provides a balance between edge sharpness and robustness for variable stainless-steel applications, helping to extend tool life while maintaining surface quality under changing cutting conditions.

How should the corner radius influence parameter selection?
The 0.8 mm corner radius offers improved edge strength for moderate depths of cut; select cutting speeds and feeds that match machine rigidity and workpiece stability to maximise life and surface finish with this radius.

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.