TNMG 160408 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD-coated carbide grade and a 60° geometry for precise, repeatable turning of stainless steels; the stable cutting edge and double-sided chipbreaker help to maintain productivity under varying conditions. Order the insert directly via Metav Werkzeuge or consult our specialists for application-specific advice.

TNMG 160408 AH6225 Tungaloy indexable insert for turning, 60°

A TNMG 160408 AH6225 insert designed for ISO-compatible external and internal turning, delivering a sharp yet robust cutting edge for machining stainless steels in medium-duty and variable conditions.

• ISO 160408 triangular insert
• PVD-coated carbide grade AH6225
• 60° cutting geometry for stable engagement
• Double-sided chipbreaker, 0.8 mm corner radius

Reliable cutting performance for stainless steels

The insert offers consistent cutting behaviour through its PVD-coated carbide substrate and a grade formulated for stainless steels. This combination provides a sharp cutting edge while maintaining resistance to wear and thermal softening during typical turning operations. For production environments where material batches or process stability vary, the insert helps to reduce unexpected tool changes and supports predictable tool life, improving overall process efficiency.

What the AH6225 grade delivers in practice

The AH6225 grade is a PVD-coated cemented carbide developed for universal use on corrosion-resistant alloys and similar materials. The coating improves hardness at elevated temperatures and reduces adhesion, while the carbide core supplies the necessary toughness. As a result, operators gain improved edge retention during interrupted cuts and reduced notch wear on reactive alloys. For those unfamiliar with coatings: PVD stands for physical vapour deposition, a thin, adherent layer that enhances surface hardness without compromising edge sharpness.

Compatibility, clamping and system considerations

This insert follows the ISO form and dimensions, so compatibility with toolholders depends on correct matching of shape, relief angle, tolerance class, clamping method, size and thickness. The system typically comprises the ISO insert, a matching outside holder or boring bar, a support pad/locking kit and replacement screws. The insert is double-sided, enabling economical indexability, and its 0.8 mm corner radius balances edge strength and surface finish when used in appropriate feeds and depths of cut.

Practical advantages and operation tips

The triangular plate with a 60° cutting geometry provides reliable engagement for both external profiling and light internal turning. Use the double-sided chipbreaker selection that matches the workpiece material and the chosen roughing or finishing strategy to control chip formation and evacuation. Appropriate cutting speeds, feeds and coolant strategy will extend life; the grade performs well under varying cutting conditions, making it a pragmatic choice for job shops and production lines seeking reproducible results without constant requalification.

For reliable, repeatable turning performance with the AH6225 grade, contact Metav Werkzeuge for ordering and application support at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6947353
• Manufacturer SKU: TUN6947353
• SKU: 6947353-Tungaloy
• Designation: TNMG160408 AH6225

Core data

• Corner radius: 0.8 mm
• Inscribed circle size: 16 mm
• Thickness: 4.76 mm
• Relief angle: 0°
• Cutting angle: 60°

Special features

• PVD-coated carbide AH6225
• Double-sided chipbreaker
• Triangular plate form
• With cylindrical locating hole
• Designed for stainless steels
• ISO-compatible turning insert

FAQ

Is this insert suitable for stainless steels?
Yes. The AH6225 grade is formulated for stainless steels, offering a sharp, stable edge and improved resistance to adhesion and thermal wear when machining corrosion-resistant alloys.

Which holders are compatible with the insert?
Compatibility requires a matching ISO holder that fits the TNMG 160408 form; the correct match depends on shape, relief angle, tolerance class, clamping method, size and thickness as described in the product data.

How is the insert indexed and how many usable edges are there?
The insert is double-sided and triangular, providing multiple cutting edges for economical indexability; this reduces tooling costs per edge compared with single-sided options.

What cutting parameters are recommended for variable conditions?
Specific speeds and feeds depend on machine rigidity and workpiece grade; the AH6225 grade is optimised for medium turning where adaptability to changing conditions is required—select the chipbreaker and cutting data according to material and stability.

Can the insert be used for internal turning?
Yes, the geometry and 60° cutting angle make it suitable for both external and internal turning operations when paired with the appropriate boring bar or holder.

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.