SNMG 120412 AH6225 Wendeplatten - Tungaloy

Taking advantage of the PVD‑coated cemented carbide grade and the 1.2 mm corner radius, this insert delivers consistent edge stability and reliable performance when turning stainless steels; order the SNMG120412 AH6225 Tungaloy insert directly via Metav Werkzeuge or consult our team for suitability and compatibility.

SNMG 120412 AH6225 – Indexable turning insert (Tungaloy)

The SNMG120412 AH6225 is an ISO‑standard square indexable insert designed for external and internal turning, optimised for medium turning of stainless steels.

• PVD-coated carbide AH6225 for stainless steels
• Sharp yet stable cutting edge
• 1.2 mm corner radius for robust geometry
• ISO SNMG120412 square insert, double-sided
• Compatible with standard ISO holders

Consistent cutting performance for stainless steels

The AH6225 grade combines a PVD surface finish with a wear‑resistant cemented carbide substrate to maintain a sharp, yet durable cutting edge under changing conditions. This balance reduces the risk of built‑up edge when machining stainless steels, yielding more predictable tool life and a consistent surface finish. The engineered coating helps to resist thermal and adhesive wear, which translates into fewer unplanned tool changes and improved throughput in repetitive turning operations.

Practical geometry and secure clamping for steady production

The square SNMG form with a 1.2 mm corner radius and a plate thickness of 4.76 mm offers a stable cutting geometry that tolerates moderate interruptions in cut and slight variations in machine rigidity. The insert is double‑sided with a cylindrical hole for positive clamping; this provides two usable cutting positions per seat and simplifies inventory management. The included 90° included angle and 0° clearance are compatible with many ISO‑standard external holders, which eases integration into existing turning tool systems and supports repeatable setup.

Integration and process benefits in the workshop

As part of an ISO insert system, the component relies on correct matching of holder form, clearance angle, tolerance class and fastening method; selecting the appropriate holder and underlay ensures secure seating and optimal heat dissipation. The PVD coating improves resistance to adhesive wear typical of stainless‑steel turning, contributing to steady chip formation when paired with the double‑sided chipbreaker. Taken together, these characteristics support higher productivity and a reduced cost per component through fewer tool interventions and stable component quality.

For operations focusing on stainless‑steel turning, choose the Tungaloy AH6225 grade and contact Metav Werkzeuge for compatibility advice or order placement: info@metav-werkzeuge.com | +49 2822 7131930

Technical data

• Article number: 6826082
• Manufacturer SKU: TUN6826082
• Stock SKU: 6826082-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Label: SNMG120412 AH6225 Tungaloy-Wendeplatte
• Material: Cemented carbide

Facts

• Corner radius: 1.2 mm
• Plate thickness: 4.76 mm
• Plate size: 12 mm
• ISO code: 120412
• Clearance angle: 0°
• Included angle: 90°

Special features

• Grade/coating: AH6225, PVD-coated
• Chipbreaker: double-sided
• Plate form: square
• Hole: with cylindrical hole
• Typical application: turning of stainless steels
• System: ISO indexable insert compatible with standard holders

FAQ

Is this insert suitable for turning stainless steels?
The AH6225 grade is specifically developed for machining stainless steels; the PVD coating and carbide substrate provide a sharp but stable edge for medium turning operations.

How many indexable cutting edges are available per insert?
The square SNMG form is double‑sided, offering two usable cutting positions; each side provides one insert edge per corner.

What does the chipbreaker do on this insert?
The double‑sided chipbreaker promotes controlled chip formation and evacuation, which helps reduce heat concentration and supports consistent surface finish during turning.

Can the insert be used in standard ISO external holders?
Yes, the SNMG120412 conforms to ISO geometry; secure clamping and matching holder geometry are essential for optimal performance.

What are the key dimensions to check before ordering?
Confirm the corner radius (1.2 mm), plate thickness (4.76 mm), plate size (12 mm) and the ISO code (120412) to ensure compatibility with existing toolholders.

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.