TNMG 160412 AH6225 Wendeplatten - Tungaloy

Take advantage of a PVD-coated carbide grade (AH6225) that combines a sharp, stable cutting edge with broad suitability for stainless steels and medium cutting conditions; the insert’s 60° triangular geometry and 1.2 mm nose radius deliver reliable surface finish and predictable tool life. Order genuine Tungaloy indexable inserts directly via Metav Werkzeuge or request tailored advice from our consultants.

TNMG 160412 AH6225 Tungaloy turning insert — 60° triangular, PVD-coated carbide

TNMG 160412 AH6225 Tungaloy turning insert is an ISO-format indexable insert designed for external and internal turning applications where a balanced combination of sharpness and edge stability is required.

• TNMG160412 triangular insert, 60° geometry
• AH6225 PVD-coated carbide for stainless steels
• 1.2 mm nose radius for controlled finishing
• Double-sided chipbreaker with cylindrical hole

Consistent performance for medium turning operations

The TNMG160412 AH6225 Tungaloy insert delivers a pragmatic balance between cutting-edge sharpness and robustness. The AH6225 PVD-coated carbide grade is formulated for reliable behaviour on stainless steels, providing predictable wear rates under varying conditions. This results in longer intervals between indexings and reduced tool-change downtime, which supports steady production throughput. The geometry yields stable cutting forces and promotes a consistent surface quality during medium-duty turning.

Clear guidance on holder compatibility and mounting

Compatibility is determined by standard ISO dimensions and by the insert’s geometry: form, clearance angle, tolerance class, fastening method, size and thickness. The triangular format with a 60° included angle and a 0° clearance angle requires a matching ISO turning holder or boring bar with the correct pocket and clamp system. The insert is supplied with a cylindrical locating hole for secure seating; when selecting a holder, ensure correct seat radius and clamping torque to maintain cutting stability and repeatability.

Better chip control and surface finish with controlled nose radius

The 1.2 mm nose radius is sized to balance material removal and final surface condition: larger radii improve surface finish and stiffness but increase cutting forces, while smaller radii favour fine finishing. The insert’s double-sided chipbreaker design aids reliable chip formation and evacuation when paired with appropriate cutting parameters and coolant strategies. For marginal setups or interrupted cuts, pairing this insert with a stable toolholder and reduced depths of cut maintains component integrity and reduces the risk of edge chipping.

Contact Metav Werkzeuge for application-specific recommendations and availability of Tungaloy AH6225 inserts via info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6890649
• Manufacturer SKU: TUN6890649
• SKU: 6890649-Tungaloy
• Model series: ISO turning indexable inserts
• Designation: TNMG160412 AH6225

Numerical data

• Corner radius: 1.2 mm
• Insert size: 16 mm
• Thickness: 4.76 mm
• Geometry angle: 60°
• Clearance angle: 0°
• Manufacturer article number: 6890649

Materials & features

• Material: carbide
• Coating/grade: AH6225 (PVD-coated)
• Shape: triangular
• Chipbreaker: double-sided
• Hole: with cylindrical hole
• Design: ISO-compatible, indexable insert
• Application: Turning (external and internal)

FAQ

Is this insert suitable for machining stainless steels? Yes. The TNMG160412 AH6225 insert from Tungaloy is a PVD-coated carbide grade specifically intended for use on stainless steels and offers a compromise between edge sharpness and stability.

How many cutting edges are available per insert? The triangular, double-sided format provides multiple indexable edges; the reversible design extends usable edges before disposal. Refer to the insert geometry and clamping practice for exact edge counts.

Which holders are compatible with this ISO insert? Compatibility depends on matching the ISO pocket and clamping system; holders that accept TNMG 160412-size inserts with a cylindrical locating hole and the correct seat radius are suitable.

What surface finish can be expected with a 1.2 mm radius? A 1.2 mm nose radius offers controlled finishing in medium cutting conditions: improved surface quality compared with smaller radii while maintaining manageable cutting forces.

Is the AH6225 grade suited to variable cutting conditions? Yes. AH6225 is designed as a universal PVD-coated grade for stainless steels, providing consistent performance under changing machining parameters.

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.