SPMT 090304 NS9530 Wendeplatten - Tungaloy

Benefit from an ISO‑standard square turning insert with a sharp uncoated NS9530 cermet grade, a 0.4 mm corner radius and 11° relief for superior surface finish and low cutting forces; order directly via Metav Werkzeuge or consult our specialists for application support.

SPMT 090304 NS9530 turning insert by Tungaloy — ISO square 90° 0.4 mm

A SPMT090304 NS9530 ISO turning insert designed for precision external and internal turning, delivering a finishing cermet grade optimised for steel components.

• ISO‑standard geometry for wide holder compatibility
• Uncoated cermet NS9530 for high surface finish
• 0.4 mm corner radius for profile accuracy
• Cylindrical hole with countersink for secure clamping

Superior finish and reduced secondary work

The uncoated NS9530 cermet grade provides a sharp cutting edge and low cutting forces, which directly benefits finishing operations on steel. In practice this means fewer passes to reach target roughness, reduced need for secondary grinding or polishing and consistently improved surface integrity. The finishing character of this grade is particularly effective in continuous cutting conditions and at small depths of cut, so operators can expect reliable economics through lower rework and faster cycle times.

Faster setup and verified ISO compatibility

Built to ISO standards, the insert’s square form and defined dimensions ensure straightforward matching with a wide range of external holders and boring bars. Critical parameters that determine compatibility—form, relief angle, tolerance class, fastening, size and thickness—are standardised to simplify selection and reduce setup time. The insert is 3.18 mm thick, size 09, with a 90° geometry and 11° relief; the mounting hole is cylindrical with a single‑side countersink (40°–60°), enabling secure clamping and repeatable positioning.

Productive machining with controlled chip formation

The one‑sided chipbreaker and the insert’s geometry support stable chip control during turning, contributing to predictable tool life and consistent part quality. Designed for both external and internal turning, this insert is suited to applications where a fine finished surface is required and where machining stability is present. The ISPMT series system approach—insert, matching external holder or boring bar, plus the appropriate clamp and screws—enables a robust setup that keeps process interruptions to a minimum and helps maintain high throughputs.

For precision finishing in turning operations, contact Metav Werkzeuge for the SPMT090304 NS9530 insert and tailored application advice: info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6998622
• SKU: 6998622-Tungaloy
• Manufacturer SKU: TUN6998622
• Manufacturer: Tungaloy
• Model series: ISO turning inserts
• Material: cemented carbide
• Grade: NS9530 (uncoated cermet)

Core specifications

• ISO designation: SPMT090304
• Insert size: 09
• Shape: square (90°)
• Corner radius: 0.4 mm
• Thickness: 3.18 mm
• Relief angle: 11°
• Hole: with cylindrical hole + single‑side countersink (40°–60°)

Special features

• One-sided chipbreaker
• For external and internal turning
• Suitable for continuous cuts and small depths
• Compatibility via form, relief, tolerance, fastening, size, thickness
• System components: holder, clamping set, replacement screws

FAQ

Which materials is this insert best suited for?
The NS9530 uncoated cermet grade is a finishing grade optimised for steel, delivering low cutting forces and excellent surface finish when used in continuous turning operations.

Can the SPMT090304 be used for internal turning?
Yes, the square geometry and chipbreaker support both external and internal turning applications when paired with an appropriate boring bar or internal holder.

What mounting features ensure reliable clamping?
The insert features a cylindrical hole with a single‑side countersink (40°–60°), designed to provide secure and repeatable clamping in standard ISO clamping systems.

How does the corner radius affect profile accuracy?
The 0.4 mm corner radius provides a balance between edge strength and profile definition, improving dimensional accuracy for small contours while maintaining a sharp cutting edge for finishing.

Is the insert suitable for interrupted cuts?
This finishing grade is primarily intended for continuous cuts and small depths of cut; interrupted or heavy roughing applications may require a more robust 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.