CNMG 120404 NS9530 Wendeplatten - Tungaloy

Reliable finishing performance and low cutting forces from the uncoated NS9530 cermet, combined with ISO CNMG geometry and a 0.4 mm corner radius, deliver consistent surface quality and efficient turning. Order this insert directly via Metav Werkzeuge or contact our consultants for machining recommendations.

CNMG 120404 NS9530 ISO turning insert for finishing — Tungaloy

CNMG120404 NS9530 is an ISO-conforming rhombic insert designed for precision turning of steel, offering a sharp uncoated cermet edge for high surface finish.

• ISO-conforming CNMG geometry
• Uncoated NS9530 cermet for fine finishing
• 0.4 mm corner radius for superior finish
• Rhombic shape with cylindrical hole for secure clamping

High-precision finishing for steel turning

The combination of the NS9530 uncoated cermet grade and the CNMG geometry is optimised for finishing operations on steel. With a corner radius of 0.4 mm and a sharp cutting edge, this insert reduces cutting forces and promotes a superior surface finish, particularly in continuous cuts and small depths of cut. The fine-grain cermet composition improves edge integrity at finishing speeds, enabling stable, repeatable results and reducing the need for secondary operations. As a result, cycle times can be reduced while maintaining tight surface quality requirements.

Compatibility and secure mounting for reliable production

The insert follows the ISO designation CNMG120404, so compatibility with holders is determined by form, free clearance, tolerance class, fastening system, size and thickness. The rhombic plate form with an 80° included angle and a cylindrical hole ensures firm clamping in standard CNMG toolholders. The plate is reversible and features a double-sided chipbreaker, which supports indexing for renewed cutting edges. Manufacturers and workshops benefit from straightforward replacement procedures and predictable tool set-up when the matched holder, clamping set and screw are used.

Practical machining guidance and expected benefits

With a plate thickness of 4.76 mm and an inscribed circle size of 12 mm, the insert suits operations where rigidity and edge stability matter. The free clearance angle of 0° supports a sharp engagement for finishing passes; however, adequate workpiece support and machine stiffness remain decisive for optimal performance. The double-sided chipbreaker and the uncoated cermet grade are particularly effective for uninterrupted cutting conditions and produce consistently fine finishes. For selection of cutting data and chipbreaker options, the insert geometry and the workpiece material must be matched to achieve the best balance between tool life and surface quality.

Contact Metav Werkzeuge today for a technical recommendation on the CNMG120404 NS9530 turning insert from Tungaloy, quoting SKU TUN6998130 for fast assistance

Technical data

• Article number: 6998130-Tungaloy
• Manufacturer SKU: TUN6998130
• Manufacturer article number: 6998130
• Model series: ISO indexable turning inserts
• ISO designation: CNMG120404
• Grade: NS9530
• Manufacturer: Tungaloy

Facts

• Plate thickness: 4.76 mm
• Corner radius: 0.4 mm
• Inscribed circle: 12 mm
• Included angle: 80°
• Free clearance angle: 0°

Special features

• Uncoated cermet cutting material (NS9530)
• Rhombic plate form (CNMG)
• Double-sided chipbreaker design
• Cylindrical hole for standard clamping
• Intended use: finishing operations on steel
• ISO-conforming insert compatible with standard holders

FAQ

What materials is this insert best suited for?
This CNMG120404 NS9530 insert is formulated as a finishing grade for steel; the uncoated NS9530 cermet provides a sharp edge and low cutting forces for high-quality finishes on steel components.

What are the key geometric specifications to consider?
The insert has a corner radius of 0.4 mm, a plate thickness of 4.76 mm and an included angle of 80°; these dimensions influence edge strength and recommended depths of cut for finishing passes.

Can the insert be indexed to a fresh cutting edge?
Yes, the plate features a double-sided chipbreaker and a reversible rhombic form, allowing indexing to use additional cutting edges before replacement.

How is the insert mounted in the holder?
Mounting requires a compatible CNMG holder with the correct clamp and screw; the insert’s cylindrical hole and ISO geometry ensure secure clamping when the holder matches form, free angle and tolerance class.

Which holders are compatible with this ISO designation?
Standard CNMG-compatible turning holders designed for the 120404 size and 12 mm inscribed circle are suitable; verify holder geometry and clamping method to ensure correct fit and rigidity.

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.