TNMG 220408 NS9530 Wendeplatten - Tungaloy

Take advantage of the combination of a precision uncoated cermet grade, a 0.8 mm corner radius and ISO compatibility to achieve consistently high surface finish and low cutting forces. Order the insert directly via Metav Werkzeuge or consult the team for application-specific recommendations.

TNMG220408 NS9530 indexable insert for turning by Tungaloy — uncoated cermet, 0.8 mm radius

TNMG220408 NS9530 is an ISO-standard triangular indexable insert designed for finishing operations in turning, giving controlled chip formation and excellent surface quality on Stahl.

• Uncoated cermet NS9530 finishing grade
• Triangular insert with cylindrical hole
• 0.8 mm corner radius for fine finish
• 0° relief angle for precise engagement
• Double-sided chipbreaker for stable cuts

Precision finishing with lower cutting forces

The ISO insert delivers a finishing-oriented cutting performance due to its uncoated cermet composition and acute cutting geometry. The choice of the NS9530 grade yields a sharp cutting edge and reduced cutting forces, which translates into longer tool life in continuous cuts and minimal cutting-induced distortion. For applications in external and internal turning the insert's geometry supports predictable behaviour, enabling improved part run-out and reduced rework. The 0° relief angle contributes to stable contact conditions and predictable tool–workpiece interaction, which is particularly beneficial when machining slender parts or when maintaining tight dimensional tolerances is critical.

Consistent surface quality and process reliability

With a 0.8 mm corner radius and a double-sided chipbreaker, the insert promotes a smooth transition from cutting to finished surface, reducing the need for secondary finishing. The triangular form and cylindrical mounting hole ensure repeatable seating in compatible ISO toolholders; compatibility depends on holder form, clearance angle, tolerance class, fixing method, size and thickness. The result is a reproducible part finish and a measurable improvement in process stability, supporting shorter cycle times and less scrap in series production.

Practical system advantages for workshop integration

The insert is supplied as part of a straightforward ISO system: an indexable insert, a matching external holder or boring bar, and standard clamping hardware. This modularity simplifies tooling logistics and reduces set-up time when shifting between operations. The combination of ISO standardisation, double-sided usability and the NS9530 finishing grade makes replacement and inventory management more efficient, supporting uninterrupted production flows in small-batch and serial turning alike.

Material scope and application guidance

The grade was developed as a finishing sort for Stahl with a sharp edge and low cutting forces; it is most effective in continuous cutting and small depths of cut. When selecting cut parameters, favour conservative feeds and moderate cutting speeds to exploit the edge integrity of the cermet substrate and to achieve the highest surface quality. For interrupted cuts or heavily built-up edges, consider alternative grades or coated solutions better suited to those conditions. The triangular geometry and chipbreaker arrangement make the insert suitable for both external turning and internal boring applications where surface finish and dimensional control are priorities.

Contact Metav Werkzeuge to discuss Tungaloy TNMG220408 NS9530 inserts for precision finishing and to confirm holder compatibility and availability

Technical data

• Article number: 6998224
• Manufacturer SKU: TUN6998224
• Label: TNMG220408 NS9530 Tungaloy-Wendeplatte
• Series: ISO-Drehwendeschneidplatten
• Application: Drehen

Facts

• Shape: triangular
• Size: 22
• Corner radius: 0.8 mm
• Relief angle: 0°
• Insert hole: with hole (cylindrical)
• Geometry angle: 60°
• Chipbreaker: double-sided
• Material: carbide (substrate)
• Cutting material/grade: uncoated cermet NS9530

Special features

• ISO-standardised indexable insert
• Finishing grade for Stahl
• Sharp cutting edge for low cutting forces
• Double-sided for economical indexing
• Cylindrical hole for positive mounting

FAQ

What materials is this insert best suited for?
The TNMG220408 NS9530 is a finishing grade developed for Stahl; its uncoated cermet construction and sharp edge make it well suited to continuous finishing cuts where surface quality is the priority.

Can the insert be used on both external and internal turning operations?
Yes. The ISO triangular format and cylindrical mounting hole enable application in compatible external holders and boring bars for both external and internal turning tasks.

How does the 0.8 mm corner radius affect the finish?
A 0.8 mm corner radius provides a favourable compromise between edge strength and surface finish, helping to produce consistent finishes while maintaining reasonable edge robustness during finishing cuts.

Is the insert reversible or indexable on both sides?
The insert features a double-sided chipbreaker and can be indexed to use both cutting edges, improving economy per insert and reducing tooling changes.

What should be checked for holder compatibility?
Compatibility depends on the holder form, clearance angle, tolerance class, fixing method, size and thickness; verify the holder matches the ISO TNMG220408 dimensions and the cylindrical hole arrangement.

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.