SCMT 120404 NS9530 Wendeplatten - Tungaloy

Combining a sharp NS9530 edge, low cutting forces and an ISO‑standard square form delivers improved surface finishes and predictable tool life; order the SCMT120404 insert directly via Metav Werkzeuge or consult our technical advisors for process optimisation.

SCMT120404 NS9530 ISO square turning insert, uncoated cermet – Tungaloy

The SCMT120404 NS9530 is an ISO‑standard square turning insert designed for finishing steel, offering a sharp cutting edge and low cutting forces for continuous cuts.

• Finishing grade for steel
• Uncoated cermet substrate
• 0.4 mm corner radius
• ISO square insert with hole

Achieve superior surface finish with a finishing grade

The NS9530 is an uncoated cermet grade formulated for finishing operations on steel, providing a sharp cutting edge and low cutting forces. These properties reduce the load on the machine spindle and on workholding, which is particularly beneficial for light to medium‑duty lathes and for components where surface finish is critical. Where continuous cuts and small depths of cut are used, the insert supports a stable metal‑cutting process and can reduce the need for secondary finishing operations.

Reliable mounting and ISO compatibility for predictable results

As an ISO‑standard scmt insert, compatibility with the toolholder is determined by form, relief angle, tolerance class, fastening, size and thickness. The insert has a 7° relief and a square form with a nominal size of 12 mm and thickness of 4.76 mm, together with a cylindrical hole and a single‑side countersink (40°–60°) for secure clamping. These defined dimensions enable repeatable seating and consistent cutting geometry when the correct holder, shim and clamp are used.

Efficient cutting performance and application guidance

Designed as a finishing grade, the insert excels when used with small material removal rates and stable setups. The 0.4 mm corner radius helps to balance edge strength and surface quality, making it suitable for external and internal turning where dimensional accuracy and a fine finish are priorities. Select a one‑sided chipbreaker and matching cutting data according to workpiece rigidity and machine power for optimised chip control and to prolong insert life.

System considerations and recommended use cases

The SCMT120404 is intended to be used in a system comprising the ISO insert, a matching external holder or boring bar, and the required shim/clamp set with replacement screws. For best results on steel, pair the insert with holders that ensure correct lead and clearance angles and choose cutting parameters that favour continuous cutting—this maximises the benefit of the NS9530 grade’s low cutting forces and contributes to stable, repeatable machining.

Contact Metav Werkzeuge for application advice and genuine Tungaloy SCMT120404 NS9530 inserts; email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss suitability and availability

Technical Data

• Article number: 6998491
• SKU: 6998491-Tungaloy
• Manufacturer SKU: TUN6998491
• Brand: Tungaloy
• Model series: ISO‑Drehwendeschneidplatten

Specifications

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.4 mm
• Relief angle: 7°
• Included angle: 90°

Features & Materials

• Grade: NS9530
• Cutting material type: uncoated cermet
• Base material: Hartmetall
• Plate form: square
• Hole: cylindrical hole + single‑side countersink (40°–60°)
• Chipbreaker: one‑sided
• Typical application: turning (external and internal)
• System components: insert, matching holder or boring bar, shim/clamp and replacement screws

FAQ

What materials is this insert best suited for?
The SCMT120404 with NS9530 is optimised for finishing on steel; the uncoated cermet grade provides a sharp edge and low cutting forces that favour fine surface quality.

Can the insert be used for both external and internal turning?
Yes, the insert is suitable for external and internal turning when paired with the appropriate external holder or boring bar and correct clamping hardware.

How does the 0.4 mm corner radius affect performance?
A 0.4 mm corner radius balances edge strength with the ability to produce a fine finish; it is recommended for light cuts and where surface quality is a priority.

What should be checked for toolholder compatibility?
Compatibility depends on form, relief angle, tolerance class, fastening method, size and thickness; ensure the holder matches the insert’s 7° relief, 12 mm nominal size and 4.76 mm thickness.

Is the NS9530 grade coated?
No, NS9530 is an uncoated cermet grade designed for finishing operations on steel.

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.