VNMG 120408 AH6225 Wendeplatten - Tungaloy

High process reliability and versatile performance result from the combination of a PVD‑coated carbide grade (AH6225) and a 0.8 mm corner radius, optimised for mid‑range turning of rostfreier Stahl. Benefit from ISO compatibility and a stable cutting edge for consistent cycle times — order the VNMG120408E‑SM AH6225 directly via Metav Werkzeuge or ask our consultants if needed.

VNMG120408E‑SM AH6225 VNMG 120408 AH6225 Turning insert by Tungaloy — PVD‑coated carbide, 0.8 mm radius

The VNMG120408E‑SM AH6225 is an ISO‑standard rhombic turning insert engineered for external and internal turning operations; designed for reliable chip control and a sharp yet durable cutting edge when machining rostfreier Stahl.

• VNMG120408E‑SM AH6225 turning insert by Tungaloy
• PVD‑coated carbide grade AH6225 for rostfreier Stahl
• 0.8 mm corner radius for stable cutting edge
• Cylindrical hole, ISO rhombic 12 mm format

Proven grade and coating for rostfreier Stahl that extend tool life and stability

The PVD‑coated AH6225 grade combines a wear‑resistant coating with a fine, cemented carbide substrate to deliver a balance of sharpness and edge stability. For varied machining conditions and intermittent cuts, this composition improves flank and crater wear resistance, which in turn reduces insert changes and machine idle time. By selecting a universal grade, shops achieve broader material coverage without sacrificing repeatability, making the insert particularly suitable for typical turning tasks on rostfreier Stahl where both surface finish and tool life are priorities.

Geometry and chip control that support reliable process performance

The insert’s rhombic format, 0.8 mm corner radius and SM chipbreaker were chosen to combine robust cutting with controlled chip formation. The 0° clearance angle and a 35° nominal approach angle ensure predictable engagement and force distribution in external and internal turning setups. The cylindrical hole and ISO specification guarantee secure clamping in standard holders; consistent seating and repeatable tolerance classes reduce vibration and contribute to excellent surface integrity on the workpiece.

System compatibility and operational advantages for productive turning

Used as part of an ISO‑based system — turning insert, matched external holder or boring bar, shim/clamp set and replacement screws — the insert simplifies tool management and changeover. The 4.76 mm plate thickness and 12 mm format provide structural support under mid‑range cutting parameters, helping to maintain cycle stability and reduce rejects. With fewer tool interventions and predictable wear behaviour, the component supports process reliability and economic machining, particularly in batch production or mixed‑run environments.

Contact Metav Werkzeuge for technical advice and availability of the Tungaloy VNMG120408E‑SM AH6225 turning insert — email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss compatibility with existing holders and machining strategies

Technical data

• Article number: 6903236
• SKU: 6903236‑Tungaloy
• Manufacturer SKU: TUN6903236
• Model series: ISO‑Drehwendeschneidplatten
• Material: Hartmetall

Core specifications

• Designation: VNMG120408E‑SM AH6225
• Corner radius: 0.8 mm
• Thickness: 4.76 mm
• Size: 12 mm
• Approach angle: 35°
• Clearance angle: 0°

Versions & features

• Rhombic plate form (VNMG)
• Cylindrical hole for secure clamping
• SM chipbreaker geometry
• PVD‑coated carbide grade AH6225
• ISO‑standard turning insert for external and internal turning
• System components: insert, holder/boring bar, shim/clamp set, replacement screws

FAQ

What materials is this insert best suited for?
The VNMG120408E‑SM AH6225 turning insert is specified for rostfreier Stahl and performs well across a wide range of stainless grades thanks to the PVD coating and the AH6225 carbide substrate.

Is the insert compatible with standard ISO holders?
Yes. The insert follows ISO‑standard dimensions and seating; compatibility with a given holder is determined by form, clearance angle, tolerance class, clamping method, size and thickness.

What chipbreaker is fitted and what is its benefit?
This grade uses the SM chipbreaker, which promotes short, controllable chips during turning and supports consistent surface quality in mid‑range machining.

How does the 0.8 mm corner radius affect machining?
A 0.8 mm corner radius provides a compromise between edge strength and the ability to produce a fine surface finish, improving edge life under variable cutting conditions.

Can this insert be used for internal turning or boring?
Yes. The geometry and ISO format make the plate suitable for both external and internal turning 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.