SPMT 120404 NS9530 Wendeplatten - Tungaloy

Take advantage of the combination of high‑quality finishing performance, low cutting forces and straightforward tool changeover for consistent production results. Order genuine Tungaloy inserts directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

SPMT 120404 NS9530 — ISO turning insert for finishing, Tungaloy

The SPMT 120404 NS9530 is an ISO‑standard turning insert engineered for finishing operations on steel, providing a sharp cutting edge and stable surface quality.

• ISO‑standard SPMT 120404 geometry
• Uncoated cermet NS9530 for fine finishing
• Low cutting forces and sharp cutting edge
• Square insert with 0.4 mm corner radius

High‑precision finishing for improved surface quality

The ISO‑standard insert delivers consistent results in finishing applications thanks to its uncoated cermet grade NS9530, which is formulated for a sharp cutting edge and reduced cutting forces. These characteristics translate into a fine surface finish on steel components and make the insert particularly suited to continuous cuts and small depth‑of‑cut operations. For production environments where repeatable part quality is essential, this grade offers a stable machining window and reduced tendency for built‑up edge, which helps to maintain dimensional accuracy and surface integrity across batches.

Secure seating and predictable tool behaviour

Compatibility with the toolholder is determined by form, relief angle, tolerance class, fastening method, size and thickness; the insert’s square form and 0.4 mm corner radius ensure reliable positioning and predictable chip flow. The insert features an 11° relief and is supplied with a cylindrical hole plus one‑sided countersink (40°–60°) to suit standard clamping systems; this combination supports repeatable seating and easy indexing. Clear specification of these geometric parameters simplifies holder selection and reduces trial‑and‑error setup time, improving first‑pass yield on precision turning tasks.

Material suitability and efficient chip control

Designed primarily for turning steel, the cutting concept pairs the NS9530 cermet with a one‑sided chipbreaker to balance low cutting forces and surface quality. The grade is optimised for finishing cuts where minimal tool‑induced deformation and excellent edge integrity are required. Selecting this insert reduces cutting vibration risk at low feeds and helps achieve dimensional consistency in components that demand tight tolerances. Where application demands vary, matching chipbreaker profile and insert geometry to workpiece stability will preserve tool life and part quality.

Economic machining through fast indexing and reliable edge life

Indexable inserts reduce downtime compared with regrindable tools — a single corner replacement restores original geometry quickly. The combination of sharp cutting edge and stable edge behaviour in this grade supports longer intervals between indexings, contributing to lower per‑part tooling costs. The modular ISO system design allows spare inserts, holders and clamping sets to be managed economically in the toolroom, enabling quicker tool changes and predictable maintenance planning. For manufacturers aiming to keep cycle times and setup costs under control while maintaining finishing standards, this insert provides a pragmatic balance of performance and economy.

For finishing operations on steel, request the genuine Tungaloy SPMT 120404 NS9530 through Metav Werkzeuge or contact our application engineers at info@metav-werkzeuge.com or +49 2822 7131930 to discuss holder compatibility and optimal cutting data.

Technical data

• Article number: 6998506

• Manufacturer SKU: TUN6998506

• Seller SKU: 6998506-Tungaloy

• Model series: ISO‑Drehwendeschneidplatten

• ISO designation: 120404

• Insert designation: SPMT120404

• Grade: NS9530

• Substrate / type: uncoated cermet

• Note: with hole and one‑sided countersink (40°–60°)

Facts

• Insert size: 12 mm

• Thickness: 4.76 mm

• Corner radius: 0.4 mm

• Relief angle: 11°

• Included angle: 90°

Special features

• Square insert form

• One‑sided chipbreaker

• Cylindrical hole with countersink

• Intended application: turning

• Typical use: external and internal finishing cuts

FAQ

What materials is this insert intended to machine? This insert is specified for turning steel; the NS9530 cermet grade is optimised for finishing on steel workpieces.

How does the 0.4 mm corner radius affect finished parts? A 0.4 mm corner radius provides a balance between edge strength and fine surface finish, reducing the risk of tool‑induced marks while maintaining dimensional control.

Which holders are compatible with the insert? Compatibility depends on holder form, relief, tolerance class, fastening, size and thickness; the SPMT 120404 fits holders designed for ISO SPMT geometry with a cylindrical hole and countersink seating.

Is this insert suitable for interrupted cuts? The grade is primarily a finishing type for continuous cuts and small depths; for heavy interrupted cutting, a different grade or geometry may be preferable.

How many cutting edges are available per insert and how is indexing performed? The insert is indexable according to its square geometry; each change restores the original cutting edge and seating for rapid replacement and continued operation.

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.