SNMG 120408 NS9530 Wendeplatten - Tungaloy

Take advantage of the combination of precision finishing, low cutting forces and standard ISO compatibility for consistent, high-quality turning results; order directly via Metav Werkzeuge or request application advice from our consultants.

SNMG 120408 NS9530 — uncoated cermet turning insert for finishing (Tungaloy)

The SNMG120408 NS9530 is an ISO-format square turning insert engineered for fine finishing of steel, optimised for continuous cuts and small depths of cut.

• ISO SNMG 120408 geometry for standard holders
• Uncoated cermet grade NS9530 for fine finishing
• 0.8 mm nose radius for superior surface quality
• Double-sided chipbreaker with cylindrical hole

Delivering consistent finishing and reduced cutting forces

The insert is designed as a precision finishing solution that combines a sharp cutting edge with a low-friction uncoated cermet grade. This results in reduced cutting forces and stable chip formation during continuous turning operations, which in turn supports improved surface integrity and repeatable part quality. The material choice and geometry are geared towards steady-state cutting rather than heavy roughing, making the component especially suitable where surface finish and dimensional consistency are priorities.

Clear guidance on compatibility and system setup

Compatibility with toolholders is determined by standard ISO parameters: form, clearance angle, tolerance class, fastening, size and thickness. The insert is supplied in the ISO SNMG 120408 format and therefore fits holders specified for that geometry when the holder’s seating and clamping match the insert’s dimensions. The 0° clearance angle and the 90° included angle should be confirmed against the holder specification to ensure correct seating and effective chip evacuation.

Practical handling and indexability benefits

Featuring a square form and a double-sided chipbreaker, the insert offers economical indexing: rotating or flipping the insert provides access to fresh cutting edges and extends tool life per insert. The cylindrical hole supports secure clamping and repeatable positioning. Key dimensions are size 12 mm, thickness 4.76 mm and nose radius 0.8 mm, which together influence rigidity, allowable feed per revolution and achievable surface finish; the larger nose radius helps blend tool marks, while the modest radius value keeps cutting forces moderate for fine finishing.

Application scope and recommended use

The uncoated NS9530 grade is optimised for machining steel in finishing conditions with small depths of cut and continuous chip flow. Its sharp edge geometry reduces built-up edge and is particularly effective where light cutting forces and excellent surface aesthetics are required. For different workpiece materials or interrupted cuts, a different chipbreaker or grade should be selected to match thermal and mechanical demands. If further clarification on suitability for a specific application is required, technical consultation is recommended to align grade and geometry with the intended cutting conditions.

For precise finishing with a trusted Tungaloy solution, contact Metav Werkzeuge for application advice or to place an order — email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss delivery and compatibility.

Technical data

• Article number: 6998279
• Vendor SKU: 6998279-Tungaloy
• Manufacturer SKU: TUN6998279
• Manufacturer: Tungaloy

Core data

• Size: 12 mm
• Thickness: 4.76 mm
• Nose radius: 0.8 mm
• Clearance angle: 0°
• Insert angle: 90°
• Hole style: Cylindrical hole

Special features

• Material: cemented carbide
• Grade: uncoated cermet NS9530
• Geometry: SNMG 120408, square form
• Chipbreaker: double-sided
• Application: turning, finishing in steel
• ISO-format insert

FAQ

What applications is this insert suited for?
The SNMG120408 NS9530 turning insert from Tungaloy is intended for external and internal turning where fine finishing and continuous cuts in steel are required; its design favours small depths of cut and stable surface quality.

Is the insert coated or uncoated?
This product uses an uncoated cermet grade, NS9530, optimised for a sharp cutting edge and low cutting forces in finishing operations.

How should toolholder compatibility be checked?
Compatibility is determined by insert form, clearance angle, tolerance class, fastening, size and thickness; holders specified for the ISO SNMG 120408 geometry and a 4.76 mm insert thickness are appropriate when seating and clamping match.

How does the nose radius affect the finish?
The 0.8 mm nose radius reduces tool mark amplitude and helps achieve a smoother surface while maintaining manageable cutting forces for finishing conditions.

How is the insert indexed and clamped?
The square, double-sided design with a cylindrical hole enables secure clamping and indexing to access fresh cutting edges, extending the effective life per insert.

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.