CNMG 090412 AH120 Wendeplatten - Tungaloy

Benefit from the combination of PVD‑coated cemented carbide and a sharp cutting edge for long tool life and stable production processes; the 80° rhombic geometry with a 1.2 mm corner radius delivers reliable cutting performance in both external and internal turning. Order the CNMG090412 AH120 turning insert directly via Metav Werkzeuge or ask our consultants if needed.

CNMG 090412 AH120 turning insert – PVD-coated cemented carbide, 80° rhombic (Tungaloy)

The CNMG090412 AH120 is an ISO‑normed indexable insert designed for general turning operations, offering a wear‑resistant grade and geometry suited to external and internal turning.

• PVD-coated cemented carbide AH120
• 80° rhombic geometry for versatile turning
• 1.2 mm corner radius for stable cuts
• Double-sided chipbreaker, two usable edges
• Cylindrical hole and ISO compatibility

Consistent edge life for steady production

The AH120 grade is a PVD‑coated cemented carbide developed for a balance of wear resistance and fracture toughness, which supports process security during medium to heavy interrupted cuts. The coating reduces flank and crater wear while preserving a sharp cutting edge, so changeover intervals are extended and tool life becomes more predictable. For production environments that prioritise uptime, this combination reduces unexpected tool failures and aids repeatable cycle times.

Seamless fit into ISO tool systems

As an ISO‑normed rhombic plate, compatibility with a toolholder is defined by the insert form, clearance angle, tolerance class, fastening and thickness. The system configuration—insert, matching external holder or boring bar, backing/clamp set and replacement screws—permits straightforward integration into existing turning tool stations. The cylindrical hole and standard dimensions ensure secure clamping and repeatable positioning, supporting accurate tool setup and minimising downtime for adjustments.

Geometry designed for repeatable surface quality

The 80° included angle combined with a 1.2 mm corner radius gives a robust cutting edge that transfers cutting forces evenly, improving vibration resistance and surface finish in steady cuts. The double‑sided chipbreaker provides two usable cutting edges per face and helps control chip formation for a wide range of turning strategies. For applications where a sharp edge and reliable performance are required, this rhombic indexable solution achieves consistent dimensional and surface results while simplifying edge management.

For original Tungaloy CNMG090412 AH120 inserts and tailored cutting‑data advice, contact Metav Werkzeuge — technical consultants are available to discuss suitability and delivery options

Technical data

• Article number: 6750471
• Manufacturer article number: TUN6750471
• SKU: 6750471-Tungaloy
• Designation: CNMG090412 AH120 Tungaloy indexable insert
• Model series: ISO turning indexable inserts
• Material: cemented carbide
• Coating: PVD

Dimensions / Numbers

• Corner radius: 1.2 mm
• Thickness: 4.76 mm
• Included angle: 80°
• Size: 09
• ISO code: 090412

Special features

• PVD‑coated cemented carbide AH120
• Double-sided chipbreaker
• Cylindrical hole for secure clamping
• ISO‑normed rhombic insert
• Suitable for external and internal turning
• Compatibility determined by form, clearance angle, tolerance, fastening, size and thickness

FAQ

What applications is this insert intended for?
The CNMG090412 AH120 insert is specified for general external and internal turning where a sharp cutting edge and process security are required; it is a versatile plate for a broad range of turning tasks.

What does the AH120 designation mean for performance?
AH120 denotes a wear‑ and fracture‑resistant grade with a PVD coating, optimised for sustained edge life and reliable performance under frequently interrupted cuts.

How many usable cutting edges are available on the plate?
The rhombic plate features a double‑sided chipbreaker design, providing multiple usable edges per plate to extend productivity and reduce tooling costs.

Is the plate compatible with standard ISO toolholders?
Yes, the CNMG090412 conforms to ISO dimensions and the cylindrical hole plus standard thickness make it compatible with holders designed for this insert form and size.

What is the corner radius and how does it affect machining?
The plate has a 1.2 mm corner radius, which improves stability under load, reduces vibration and helps produce consistent surface quality on turned parts.

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.