SNMG 120412 AH6225 Wendeplatten - Tungaloy

High cutting-edge stability from the AH6225 PVD‑coating and a 1.2 mm corner radius ensures consistent component quality and longer tool life; combined with the ISO compliance and robust clamping features, this insert supports efficient turning operations. Order the SNMG120412 AH6225 insert directly via Metav Werkzeuge or ask our consultants if needed.

SNMG 120412 AH6225 ISO turning insert by Tungaloy — square 90° insert for rostfreie Stähle

A SNMG120412 AH6225 ISO‑standard turning insert engineered for external and internal turning, offering a sharp yet stable cutting edge for medium machining under varying conditions

• PVD-coated carbide grade AH6225
• Optimised for rostfreie Stähle machining
• Square shape, 90° geometry, 1.2 mm radius
• Double-sided chipbreaker, cylindrical hole

Stable cutting performance for rostfreie Stähle

The AH6225 grade is a PVD‑coated cemented carbide developed as a universal solution for rostfreie Stähle, delivering a balance between sharpness and edge robustness. This combination helps to maintain acceptable wear resistance in mixed cutting conditions and contributes to predictable tool life. The PVD layer reduces flank wear and improves resistance to built‑up edge formation, which results in more consistent part tolerances and fewer unplanned interventions during production.

Precise geometry for predictable setup and component quality

The square 90° geometry with a 1.2 mm corner radius and a 4.76 mm insert thickness provides mechanical stability and a repeatable seating in suitable holders. The ISO designation and dimensional consistency make it straightforward to match the insert to a compatible external holder or boring bar: compatibility is governed by form, clearance angle, tolerance class, fastening, size and thickness. This clarity in specification reduces setup time and supports process reproducibility on the shop floor.

Improved chip control and secure clamping for reliable cycles

A double-sided chipbreaker and a cylindrical hole for clamping mean the insert offers enhanced versatility and secure fixation in the assembly. The chipbreaker geometry is intended to assist evacuation during external and internal turning, promoting stable cutting forces and an improved surface finish. In combination with the PVD coating, these design features contribute to process security and steady productivity across medium cutting operations.

Practical selection guidance and tool handling

Select the chipbreaker and grade in line with workpiece stability and the specific rostfreie Stähle grade being machined; the universal AH6225 suits variable conditions but pairing the insert with a suitably rigid holder and correct clearance angle will maximise benefits. Replace inserts when flank wear or edge chipping becomes visible to retain component accuracy. For complex applications or unusual material batches, technical consultation can streamline the choice of chipbreaker and clamping arrangement and help maintain throughput targets.

Rely on Tungaloy’s AH6225 grade for consistent stainless‑steel turning — contact Metav Werkzeuge for availability and tailored recommendations.

Technical data

• Article number: 6890646
• SKU: 6890646-Tungaloy
• Manufacturer SKU: TUN6890646
• Brand: Tungaloy

Data

• ISO designation: 120412
• Insert designation: SNMG120412
• Thickness: 4.76 mm
• Corner radius: 1.2 mm
• Size (inscribed): 12
• Included angle: 90°

Special features

• Material: cemented carbide
• Grade/coating: AH6225, PVD coating
• Shape: square, double-sided chipbreaker
• Hole: with cylindrical hole
• Application: Turning (external and internal)
• Compatibility defined by form, clearance angle, tolerance class, fastening, size and thickness

FAQ

Which materials is this insert suited for?
The SNMG120412 AH6225 insert from Tungaloy is specified for machining rostfreie Stähle; the AH6225 grade and PVD coating target medium cutting conditions and mixed stainless‑steel applications.

How is holder compatibility determined for this insert?
Compatibility depends on the insert form, required clearance (freiwinkel), tolerance class, fastening method, overall size and thickness rather than on a single measurement; verifying these parameters ensures a correct fit for the chosen holder or boring bar.

What do the grade and coating indicate for performance?
AH6225 denotes a universal PVD‑coated cemented carbide designed to combine a sharp cutting edge with stable edge life in rostfreie Stähle, improving wear resistance and reducing the risk of built‑up edge under variable conditions.

What are the key dimensional features to consider when replacing inserts?
Note the insert designation SNMG120412, the 1.2 mm corner radius, 4.76 mm thickness and the 90° geometry; matching these dimensions preserves clamping reliability and the intended cutting geometry.

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.