SNGA 120408 NS520 Wendeplatten - Tungaloy

Take advantage of the combination of high surface-quality performance, consistent wear resistance and simple mounting for reliable finishing operations; order the SNGA120408 NS520 insert directly via Metav Werkzeuge or consult the team for application advice.

SNGA 120408 NS520 Tungaloy indexable insert — ISO 120408, square finishing insert

SNGA 120408 is an ISO‑standard indexable turning insert designed for finishing and light turning of steel components.

• ISO indexable turning insert SNGA120408
• NS520 cermet grade for superior finish
• Square 12 mm size with 0.8 mm nose radius
• Cylindrical hole, 0° relief angle for secure clamping

Optimised surface finish and dimensional consistency

The insert is engineered for precision turning, delivering improved surface quality and tight dimensional control in finishing passes. The NS520 cermet grade, available as coated or uncoated cermet, emphasises a fine, stable cutting edge that promotes uniform wear and repeatable part quality. The modest 0.8 mm nose radius and the square form are selected to balance edge strength with the ability to achieve the required surface roughness, making the geometry suitable for components where appearance and tolerances matter.

Confident clamping and broad ISO compatibility

Compatibility with toolholders is determined by insert form, clearance angle, tolerance class, fixing method, size and thickness. The ISO designation ensures interchangeability in ISO‑compliant holders and boring bars; the square 12 mm dimension and 4.76 mm thickness match common external and internal turning systems. The insert’s cylindrical pilot hole supports positive clamping and stable seating, reducing vibration and improving process stability during light to finishing cuts.

Durable cutting edge for productive finishing cycles

Constructed from cemented carbide substrate with the NS520 cermet specification, the insert offers high resistance to abrasive wear while supporting excellent surface integrity. The grade focuses on consistent flank wear rather than maximum metal removal, so productive finishing cycles are achieved with predictable tool life. Absence of a specialised chipbreaker means chip control should be matched to the workpiece material and cutting conditions; selecting appropriate parameters maintains chip flow and extends cutting performance.

Contact Metav Werkzeuge for availability of Tungaloy SNGA 120408 inserts and tailored recommendations by email at info@metav-werkzeuge.com or by phone at +49 2822 7131930

Technical data

• Article number: 6806465
• Manufacturer SKU: TUN6806465
• SKU: 6806465-Tungaloy
• ISO designation: SNGA120408
• Model series: ISO indexable turning inserts

Numbers / Core technical data

• Size: 12 mm
• Thickness: 4.76 mm
• Nose radius: 0.8 mm
• Relief angle: 0°
• Angle: 90°

Designs / Special features

• Material: cemented carbide (cermet or coated cermet)
• Grade: NS520, for finishing to light machining of steel
• Shape: square insert
• Hole: with cylindrical hole
• Chipbreaker: none
• Application: turning

FAQ

Is this insert suitable for finishing steel components?
The SNGA120408 NS520 Tungaloy insert is specified for finishing to light machining of steel and is particularly focused on delivering high surface quality and consistent wear.

Which toolholders will accept this insert?
Compatibility is determined by the insert form and ISO designation; holders and boring bars designed for ISO SNGA120408 format with corresponding clearance and clamping geometry will accept the insert.

What does the NS520 grade mean in practice?
NS520 is a cermet grade optimised for superior surface finish and dimensional stability; it promotes uniform wear and is intended for finishing and light turning applications.

Can the insert be used for roughing operations?
This grade and geometry are tailored to finishing; for heavy roughing, a different grade and insert geometry with robust chipbreaking would be more appropriate.

How do nose radius and relief angle affect machining results?
A 0.8 mm nose radius balances edge strength and surface finish, while the 0° relief angle influences the effective cutting geometry and must be matched with the holder and cutting parameters for stable performance.

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.