DCMT 070204 NS9530 Wendeplatten - Tungaloy

Take advantage of the combination of a sharp, low-force cutting geometry and ISO compatibility for predictable finishing results; order the inserts directly via Metav Werkzeuge or consult the team for application-specific recommendations.

DCMT070204 NS9530 Tungaloy indexable insert for Turning — 55° rhombic, 0.4 mm radius

A rhombic ISO indexable insert, DCMT070204 NS9530, designed for finishing turning of steel where low cutting forces and high surface quality are required.

• ISO rhombic insert DCMT070204, 55°
• Uncoated cermet grade NS9530 for finishing
• Sharp cutting edge with low cutting forces
• Cylindrical hole with single‑side countersink

High-surface finishing with low cutting forces

The uncoated cermet composition of the NS9530 grade is optimised for finishing operations on steel. As a specialised finishing grade, it delivers a sharp cutting edge and reduced cutting forces, which together lower machining vibrations and help achieve consistently finer surface finishes. Cermet materials combine ceramic hardness with metallic toughness; this balance improves dimensional stability in continuous cuts and supports small depths of cut typical for precision turning. The result is predictable part quality and fewer rework cycles.

Geometry and system compatibility for reliable clamping

The rhombic geometry with a 55° cutting angle and 0.4 mm corner radius provides a balance between profile definition and edge strength, while the 7° clearance angle minimises rubbing and heat build-up at the flank. The insert thickness of 2.38 mm and the ISO designation determine compatibility: holder form, clearance, tolerance class, fastening method, size and thickness must match the insert specification. The insert is supplied with a cylindrical hole and a single‑side countersink (40°–60°) for secure clamping in ISO‑standard turning holders; a matching clamp set, underlay and replacement screws complete the system and ensure repeatable seating and torque transmission.

Process efficiency: fewer interruptions, better finish

Equipped with a one‑sided chipbreaker and a finishing‑oriented substrate, the insert promotes stable chip formation and unconstrained evacuation during continuous turning. These properties reduce the likelihood of built‑up edge and minimise surface irregularities, making the component particularly suitable for external and internal finishing passes. In practical terms, this leads to higher throughput with consistent part quality and longer intervals between tool changes. For integration into production, select a matching ISO outside holder or boring bar and observe recommended cutting parameters for cermet grades to exploit the full potential of the insert.

For precision finishing with Tungaloy quality, request DCMT070204 NS9530 inserts from Metav Werkzeuge or contact the Metav Werkzeuge technical team for application guidance at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6998479
• Manufacturer SKU: TUN6998479
• Model series: ISO-Drehwendeschneidplatten
• Material: Hartmetall
• Grade: NS9530

Core dimensions

• Geometry: DCMT070204 (rhombic, 55°)
• Corner radius: 0.4 mm
• Clearance angle: 7°
• Thickness: 2.38 mm
• Insert size: 07

Design & features

• Hole: cylindrical hole + single-sided countersink (40°–60°)
• Chipbreaker: one-sided
• Coating: uncoated cermet
• Typical application: external and internal turning, finishing cuts

FAQ

Which materials are suitable for this insert?
The DCMT070204 NS9530 insert is primarily intended for finishing on steel; the NS9530 uncoated cermet composition is optimised for continuous cutting with low cutting forces.

How does the 0.4 mm corner radius affect results?
A 0.4 mm corner radius on the DCMT070204 provides a fine profile edge that improves surface finish while maintaining adequate edge strength for finishing passes.

What must be matched to ensure compatibility with a holder?
Compatibility requires matching the insert form, clearance angle, tolerance class, fastening type, size and thickness; the insert is designed for ISO‑standard holders with a cylindrical hole and single‑side countersink.

Is this insert suitable for internal turning as well as external turning?
Yes, the insert is designed for both external and internal turning operations when used with the appropriate ISO boring bar or holder and recommended cutting parameters for cermet grades.

What benefits does the uncoated NS9530 grade offer compared with coated grades?
The uncoated NS9530 cermet offers a very sharp initial cutting edge and reduced cutting forces, which benefits surface quality in finishing applications, particularly under continuous cutting conditions.

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.