CNMG 120408 NS9530 Wendeplatten - Tungaloy

High surface quality, low cutting forces and ISO compatibility make this insert a reliable choice for finishing operations; its rhombic 80° geometry and double‑sided chipbreaker support consistent cycle times and stable chip control. Order the CNMG120408 NS9530 directly via Metav Werkzeuge or ask our consultants if needed.

CNMG120408 NS9530 turning insert by Tungaloy — uncoated cermet, rhombic 80°

The CNMG120408 NS9530 is an ISO‑standard turning insert designed for external and internal turning, optimised as a finishing grade for steel with a sharp cutting edge and low cutting forces

• ISO‑standard CNMG format, compatible widely
• Uncoated NS9530 cermet for fine finishing
• Rhombic 80° geometry with 0° clearance
• Double‑sided chipbreaker, cylindrical hole

Improved surface finish with low cutting forces

The NS9530 grade is an uncoated cermet developed for finishing operations on steel where a high surface quality and reduced cutting forces are decisive. As a finishing grade, the material produces a fine edge that maintains sharpness during continuous cuts, resulting in fewer passes and less hand finishing. This characteristic reduces cycle times and can lower the risk of burnishing or subsurface damage, making the insert particularly suitable for precision components where dimensional tolerance and appearance matter.

Reliable seating and predictable tool life for consistent parts

The rhombic plate form and 80° included angle deliver a stable contact area between insert and toolholder, improving repeatability part after part. The ISO standard geometry simplifies holder selection because compatibility is determined by form, clearance, tolerance class, fastening and size rather than bespoke dimensions. The cylindrical locating hole and the 0° clearance ensure a secure fit and predictable cutting line, which minimises vibration and supports tighter tolerances on turned features.

Stable chip control for continuous and small‑depth cuts

Equipped with a double‑sided chipbreaker, the insert governs chip formation during continuous turning and when using small depths of cut. Stable chip control reduces secondary operations and improves tool‑to‑part interaction, particularly on long or slender workpieces where uncontrolled chips can mar the surface or obstruct coolant flow. The combination of the chipbreaker design and the sharp cermet edge supports efficient material removal while conserving machine time and operator intervention.

Material guidance and selection for application demands

Cermet differs from conventional cemented carbide by offering a harder cutting edge and superior finish in finishing conditions, though it is less tolerant to interrupted cuts and heavy roughing. For the best outcome, pair this grade with a holder that provides sufficient rigidity and select a chipbreaker suited to the workpiece stability and feed rate. Where continuous cuts and fine feeds are planned, the NS9530 grade provides an economical route to consistent surface integrity and extended time between regrinds.

Contact Metav Werkzeuge for tailored selection advice on Tungaloy CNMG120408 NS9530 inserts — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6735858
• SKU: 6735858-Tungaloy
• Manufacturer SKU: TUN6735858
• Model series: ISO‑Drehwendeschneidplatten
• Label: CNMG120408 NS9530 Tungaloy‑Wendeplatte

Core technical data

• Radius: 0.8 mm
• Included angle: 80°
• Thickness: 4.76 mm
• Size: 12 mm

Special features

• Material: cemented carbide base
• Cutting material: uncoated cermet (NS9530)
• Plate form: rhombic
• Hole: cylindrical hole (with hole)
• Chipbreaker: double‑sided
• Clearance angle: 0°
• Application: external and internal turning; finishing for steel
• Compatibility: ISO‑standard insert; holder compatibility depends on form, clearance, tolerance class and fastening

FAQ

What machining tasks are best suited to this grade?
The NS9530 grade is intended for finishing operations on steel; the CNMG120408 NS9530 insert excels in continuous cuts and small depths of cut where a fine surface finish is required.

Can this insert be used for interrupted cuts?
Interrupted cuts are not the primary application for the NS9530 finishing grade; the insert performs best in continuous turning. For interrupted machining, a more robust grade would be preferable.

How does the rhombic geometry affect tool selection?
Rhombic geometry with an 80° included angle concentrates the cutting forces and helps achieve stable seating in ISO holders; select a holder matching the CNMG format, clearance and tolerance class for reliable performance.

Is the chipbreaker suitable for long, finishing cuts?
Yes, the double‑sided chipbreaker is designed to provide controlled chip formation during long, continuous finishing cuts, improving surface integrity and reducing manual clean‑up.

Which materials should not be machined with this insert?
This finishing cermet is optimised for steel; heavy roughing, hard interruptions or very abrasive alloys may lead to premature wear and are outside the intended use for this grade.

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.