CNMG 120408 AH905 Wendeplatten - Tungaloy

Take advantage of a PVD-coated carbide grade designed for wear- and fracture-resistant turning, combined with a 0.8 mm corner radius that balances edge strength and finish; order the insert directly via Metav Werkzeuge or consult our specialists for application advice.

CNMG 120408 AH905 Tungaloy indexable insert – ISO turning insert with PVD-coated carbide, 0.8 mm corner radius

CNMG 120408 AH905 Tungaloy indexable insert is an ISO-standard turning insert intended for external and internal turning operations, offering a robust cutting edge and consistent process security.

• PVD-coated carbide grade AH905
• Double-sided chipbreaker geometry
• 0.8 mm corner radius for edge stability
• Cylindrical hole and rhombic 80° shape

Higher productivity through stable cutting performance

The combination of a PVD coating and a wear-resistant carbide substrate delivers extended tool life and predictable results under standard turning conditions. This insert’s double-sided chipbreaker reduces cutting forces and supports controlled chip formation, which in turn helps maintain surface quality and reduces the frequency of tool changes. The geometry is optimised for both roughing and finishing passes, allowing a smoother machining cycle and fewer process interruptions.

Consistent edge security and surface quality

A 0.8 mm corner radius provides a compromise between rigidity and surface finish: the edge resists chipping while still enabling good workpiece appearance on a range of materials. The rhombic 80° form and cylindrical hole ensure reliable seating in compatible holders; compatibility depends on form, relief angle, tolerance class, fastenings, size and plate thickness. These features together increase process security and reduce the risk of unexpected tool failure during production.

Easy integration into existing ISO systems

The insert conforms to ISO standards for indexable turning plates and pairs with standard external holders or boring bars, plus the necessary clamp sets and spare screws. The nominal plate size and thickness simplify selection and inventory management in production environments that rely on standardised tooling. Clear specification of the plate’s relief angle (0°) and the 80° geometry aids in selecting the correct holder and optimising fixture setup.

Practical benefits for workshop efficiency

Using a grade developed for stable chip formation and fracture resistance reduces downtime caused by edge breakouts and rework. The insert’s balanced design supports predictable tool life, which benefits planning for tool replacement and cost calculations. Where surface integrity and consistent tolerances are required, this solution contributes directly to shorter cycle times and fewer rejected parts.

For tailored advice or to purchase the CNMG 120408 AH905 Tungaloy indexable insert, contact Metav Werkzeuge for technical guidance and stock availability.

Technical data

• Article number: 6885971

• Manufacturer SKU: TUN6885971

• Seller SKU: 6885971-Tungaloy

Core data

• Corner radius: 0.8 mm

• Plate size: 12 mm

• Plate thickness: 4.76 mm

• Geometry angle: 80°

• Clearance angle: 0°

Features

• Material: carbide

• Coating/grade: AH905 (PVD-coated)

• Hole: cylindrical hole

• Plate shape: rhombic

• Chipbreaker: double-sided

FAQ

What materials can this insert machine reliably? The CNMG 120408 AH905 Tungaloy indexable insert is designed primarily for general turning tasks; the AH905 grade provides good wear and fracture resistance across a broad range of steels and common workshop materials.

Is the insert compatible with standard ISO holders? Compatibility follows ISO conventions for turning plates: the rhombic 80° form, plate thickness and hole style make the insert suitable for holders that accept CNMG 120408 plates.

How does the 0.8 mm corner radius affect machining? A 0.8 mm corner radius increases edge strength and reduces chipping risk while still enabling acceptable surface finish, making it a balanced choice for mixed roughing and finishing duties.

What cutting conditions suit this PVD-coated carbide grade? The PVD coating and carbide substrate favour stable cutting under typical turning parameters; choose the chipbreaker and grade to match material, operation and machine rigidity for optimal results.

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.