CNMG 120404 NS9530 Wendeplatten - Tungaloy

Take advantage of a finishing-grade cermet and a fine 0.4 mm corner radius for improved surface quality and lower cutting forces; request advice from Metav Werkzeuge if compatibility or holder choice needs clarification, or order matching inserts directly via Metav Werkzeuge.

CNMG120404 NS9530 — CNMG ISO turning insert for finishing (Tungaloy)

CNMG120404 NS9530 is an ISO rhombic turning insert designed for finishing operations in steel machining, offering a sharp cutting edge and reliable chip control.

CNMG120404 ISO insert, 80° rhombic geometry
Uncoated cermet grade NS9530 for fine finishing
Double-sided chipbreaker for continuous cuts
0.4 mm corner radius for superior surface finish

High-precision finishing for steel components

The NS9530 grade is an uncoated cermet engineered for finishing cuts on steel, delivering a sharp edge that reduces cutting forces and improves surface integrity. Cermet combines ceramic hardness with metal toughness to maintain a fine edge at low to moderate cutting speeds; this results in consistently low burr formation and improved dimensional accuracy for turned components. The small 0.4 mm corner radius contributes to a refined contact geometry that limits tool deflection and enhances the optical quality of machined surfaces, making the insert particularly suitable for jobs where surface finish and tight tolerances matter.

Consistent chip control that maintains uptime

Equipped with a double-sided chipbreaker, the insert supports continuous cutting conditions by fragmenting chips and directing them away from the cutting zone, which reduces the risk of nestling or re-cutting. Stable chip evacuation decreases stoppages and tool changes, improving throughput in batch and single-piece production alike. The cermet substrate, combined with the chipbreaker geometry, enables smooth cutting forces and predictable flank wear, which together lower process variation and support economical, repeatable machining cycles.

ISO system compatibility and secure mounting

The insert conforms to ISO dimensions and is compatible with standard ISO turning holders when matched by form, relief angle, tolerance class, fastening method, size and thickness. The plate is supplied with a cylindrical hole, allowing secure clamping and straightforward indexing in compatible toolholders; this mechanical reliability simplifies toolsetting and reduces the chance of misalignment. Where a robust mounting strategy is required for small depths of cut and finishing passes, the standardised interface ensures consistent seat contact and repeatable positioning across production runs.

Selecting the right grade and machining strategy

This finishing-grade insert is optimised for continuous turning of steel and is best used with conservative feeds and smaller depths of cut to exploit the sharp cermet edge. The 0.4 mm corner radius balances strength and finish: it prevents excessive edge chipping while allowing tight radii on component profiles. The insert’s 0° relief angle supports precise tool engagement for fine turning tasks; for interrupted cuts or tougher alloys, a different geometry or grade should be selected to preserve edge life and process stability.

For high-quality finishing with Tungaloy NS9530 inserts, contact Metav Werkzeuge for tailored advice on holder compatibility and process parameters or to place an order: info@metav-werkzeuge.com | +49 2822 7131930

Technical Data

• Article number: 6998275-Tungaloy
• Manufacturer SKU: TUN6998275
• Manufacturer article number: 6998275
• Model series: ISO-Drehwendeschneidplatten

Facts

• Insert designation: CNMG120404
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.4 mm
• Included angle: 80°
• Relief angle: 0°
• Mounting: with hole (cylindrical hole)

Design and Features

• Grade: NS9530 (uncoated cermet)
• Chipbreaker: double-sided
• Plate shape: rhombic
• Application: turning, finishing on steel
• System: ISO turning insert system

FAQ

What materials is this insert intended for?
The CNMG120404 NS9530 insert from Tungaloy is optimised for finishing on steel, where low cutting forces and a sharp edge are required.

Can the insert be used for continuous turning operations?
Yes, the double-sided chipbreaker and cermet grade make the insert well suited to continuous cuts and processes that demand stable chip control.

What is the corner radius and how does it affect the finish?
The insert features a 0.4 mm corner radius, which enhances surface finish while maintaining adequate edge strength for finishing passes.

Is the CNMG120404 compatible with standard ISO holders?
Compatibility is ensured within the ISO insert system when holder form, relief angle, tolerance class, fastening and thickness are matched to the insert.

When should a different grade be chosen instead of NS9530?
For interrupted cuts, high heat applications or significantly tougher alloys, a more wear-resistant or coated grade is recommended to extend tool life and process stability.

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.