SPMT 090304 NS9530 Wendeplatten - Tungaloy

Take advantage of the combination of precise finishing performance, consistent holder compatibility and the low cutting forces of the NS9530 cermet grade for smoother turning operations. Order the SPMT090304 NS9530 indexable insert directly via Metav Werkzeuge or ask the consultants for tailored application advice.

SPMT 090304 NS9530 — ISO turning insert for finishing — Tungaloy

A SPMT090304 NS9530 indexable insert engineered for finishing steel during external and internal turning, offering a sharp edge and stable surface results.

• ISO SPMT 090304 format for standard holders
• Uncoated cermet NS9530 for fine finishing
• Sharp edge with low cutting forces
• Square insert, 0.4 mm corner radius, 11° relief angle

Higher surface quality with reduced cutting effort

The combination of an uncoated cermet grade and a deliberately sharp cutting geometry delivers low cutting forces and an improved surface appearance in finishing cuts. The NS9530 composition is optimised for continuous cutting and small depths of cut, which reduces vibration risks and helps maintain consistent tolerances. Operators benefit from a predictable contact condition between tool and workpiece, enabling higher first-pass quality and fewer secondary operations.

Reliable fit into ISO turning systems

Designed to ISO plate dimensions, the insert features a square form with a central hole and a cylindrical hole plus one-sided countersink (40°–60°) for stable clamping. Compatibility with a given holder is determined by the insert form, relief angle, tolerance class, fastening style, size and thickness; the standardised SPMT format simplifies selection and replacement in established toolholders. This leads to faster changeovers and predictable set-up times on the shop floor.

Why an uncoated cermet grade suits finishing steel

A cermet is a ceramic–metal composite that retains a keen edge and resists cratering during fine finishing. The NS9530 grade used here prioritises edge sharpness and low friction over heavy-duty wear resistance, making it particularly suitable when a superior surface finish is the main objective. The insert’s geometry further supports stable chip flow with the single-sided chipbreaker, helping to avoid edge build-up when machining steels under continuous cut conditions.

Practical recommendations for consistent results

Selection of chipbreaker and grade should match material, machining type and machine-tool stability. For turning steel with small feeds and light depths of cut, the combination of the NS9530 grade and the fine corner radius ensures excellent final surfaces. Use the correct underlay, clamping set and replacement screws when assembling the system, and ensure holders accept the SPMT 090304 dimensions and the 11° relief angle to maintain seating accuracy and repeatable performance.

Contact Metav Werkzeuge for application support on Tungaloy finishing inserts — email info@metav-werkzeuge.com or call +49 2822 7131930 for specific recommendations and availability

Technical data

• Article number: 6998502
• SKU: 6998502-Tungaloy
• Manufacturer SKU: TUN6998502
• Model series: ISO-Drehwendeschneidplatten
• Material: Hartmetall
• WPL designation: SPMT090304
• Grade: NS9530

Facts

• Included angle: 90°
• Corner radius: 0.4 mm
• Relief angle: 11°
• Plate thickness: 3.18 mm
• Plate size: 09

Special features

• Uncoated cermet grade NS9530
• Single-sided chipbreaker
• Square plate form
• With cylindrical hole + one-sided countersink (40°–60°)
• Application: turning (finishing steel)
• Compatibility determined by form, relief angle, tolerance class, fastening, size and thickness

FAQ

Which operations are best suited to this insert?
The SPMT090304 NS9530 insert is intended for finishing operations in turning, suitable for both external and internal turning where a sharp edge and fine surface are required.

Is the insert compatible with standard ISO SPMT holders?
Yes, the insert follows the ISO SPMT 090304 format; compatibility depends on holder acceptance of form, relief angle, tolerance class, fastening, size and thickness.

What materials are recommended for this grade?
The NS9530 uncoated cermet is optimised for steel finishing under continuous cuts and small depths of cut, offering low cutting forces and excellent surface quality.

How should the insert be clamped?
Use a matching underlay or clamping set with the correct replacement screws; the central hole with cylindrical bore and one-sided countersink ensures secure, repeatable seating.

How does the 0.4 mm corner radius affect results?
A 0.4 mm radius balances edge strength and finishing capability, aiding in achieving consistent surface quality while maintaining a sharp cutting edge.

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.