CNMG 120408 AH6235 Wendeplatten - Tungaloy

Benefit from the PVD‑coated AH6235 grade and the 0.8 mm corner radius for robust performance in stainless steel turning; the combination of wear resistance and a double‑sided chipbreaker supports process stability and predictable tool life. Order the CNMG120408 AH6235 indexable insert directly via Metav Werkzeuge or contact our advisors for compatibility checks.

CNMG 120408 AH6235 – Indexable turning insert by Tungaloy (ISO CNMG120408, PVD‑coated)

The CNMG120408 AH6235 is an ISO‑format indexable insert for general turning, engineered for interrupted cuts and applications on stainless steel where chip control and edge security are critical.

• ISO CNMG 120408 geometry
• PVD‑coated carbide grade AH6235
• 0.8 mm corner radius for robustness
• Double‑sided chipbreaker, cylindrical hole

Stable cutting performance for stainless steel applications

The insert is produced from cemented carbide and finished with a PVD coating, which together provide improved resistance to built‑up edge and abrasive wear when machining stainless steel. The AH6235 grade is a tougher variant designed specifically for interrupted cuts and applications with elevated breakout risk; this results in a more reliable cutting edge under variable engagement. The beneficial outcome is a reduction in unexpected edge chipping and fewer index‑and‑replace events, which supports consistent component quality and predictable machining cycles.

Geometry and clamping that simplify toolholder selection

The ISO CNMG120408 geometry, rhombic plate form and cylindrical hole enable straightforward compatibility with standard CNMG external holders and boring bars. The insert’s 0° rake angle and 80° approach angle are widely supported by commercial holders, while the 4.76 mm plate thickness and 12 mm inscribed circle are typical dimensions in the ISO series. These characteristics make it easier to match the insert to an existing toolset without complex reconfiguration, reducing setup time and helping maintain concentricity and repeatability in serial production.

Chip control and productivity on the shop floor

A double‑sided chipbreaker provides two cutting edges per index, doubling useful life before disposal and lowering per‑part tooling cost. The chipbreaker geometry is optimised for controlled swarf flow during turning operations, decreasing the likelihood of entanglement and improving surface finish consistency. For operations where tool change time and machine uptime matter, this insert contributes to higher net productivity and reduced secondary handling of components.

For technical compatibility checks, holder matching or ordering assistance contact Metav Werkzeuge—phone +49 2822 7131930 or email info@metav-werkzeuge.com

Technical data

• Article number: 6879025
• Manufacturer SKU: TUN6879025
• Model series: ISO turning indexable inserts
• Material: cemented carbide

Core specifications

• Corner radius: 0.8 mm
• Approach angle: 80°
• Plate thickness: 4.76 mm
• Inscribed circle: 12 mm

Design & special features

• ISO designation CNMG120408
• Grade/coating: AH6235, PVD‑coated
• Plate form: rhombic
• Hole style: cylindrical hole
• Chipbreaker: double‑sided
• Application: turning; suited to interrupted cuts and stainless steel

FAQ

What materials is this insert best suited for?
The CNMG120408 AH6235 insert is formulated for stainless steel machining and performs well in interrupted cuts and conditions with increased breakout risk.

How many usable edges does the insert provide?
With a double‑sided chipbreaker and rhombic form, the insert provides multiple indexable edges—two usable sides per face—extending effective service life before replacement.

Which holders are compatible with CNMG120408 geometry?
Standard CNMG external turning holders and compatible boring bars that accept ISO CNMG inserts and a 12 mm inscribed circle are suitable; confirm form, clearance and clamping style for optimal fit.

Does the AH6235 grade require special cutting data?
AH6235 is a tougher PVD‑coated carbide grade aimed at improved edge security; recommended cutting parameters are typically similar to other PVD grades for stainless steel but should be validated on the specific machine and material to balance tool life and productivity.

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.