SNMA 120412 NS520 Wendeplatten - Tungaloy

Take advantage of the combination of precise finishing performance, ISO interchangeability and durable cermet cutting grade for consistent production results. Order the SNMA120412 NS520 Tungaloy indexable insert directly via Metav Werkzeuge or consult our specialists for application advice.

SNMA 120412 NS520 Tungaloy indexable turning insert for finishing

A SNMA120412 NS520 indexable insert designed for finishing and light turning of steel, offering a 1.2 mm nose radius and ISO-compliant geometry for reliable interchangeability.

• ISO-compliant SNMA geometry
• NS520 cermet for improved surface finish
• 1.2 mm nose radius for accurate profiles
• Square 12 mm size, 4.76 mm thickness

Improved surface quality and dimensional control for finishing

The NS520 grade is a cermet or coated cermet designed specifically for finish to light machining of steel, emphasising consistent surface finish and dimensional stability. Thanks to the grade’s fine microstructure, uniform wear behaviour is promoted, which reduces part variation and the need for repeated adjustment. The 1.2 mm nose radius supports tight profile control on external and internal diameters while maintaining a balance between edge strength and fine surface generation. In process terms, this translates to fewer reworks and higher first-pass yield for precision components.

ISO geometry and clamping reliability for predictable production

Built to ISO norms, the square SNMA form ensures straightforward replacement and predictable fit in compatible holders. Compatibility depends on form, clearance, tolerance class, fastening and thickness; the insert’s cylindrical hole and standard dimensions simplify selection of the correct external holder or boring bar. A standardised interface reduces setup time and minimises error when swapping inserts, which helps stabilise cycle times and maintain part-to-part consistency on multi-shift production lines.

Cost-effectiveness through process stability and reduced downtime

Choosing a stable cutting grade and standardised geometry yields measurable economic benefits: fewer tool changes, longer intervals between indexings and more consistent component quality. The carbide substrate combined with the NS520 surface characteristics lowers the risk of premature chipping during finishing passes and extends usable life per edge. For production environments focused on throughput and quality, this combination supports a favourable cost-per-part metric and enhances overall process reliability.

Application guidance and practical selection tips

Intended for turning operations, the insert is optimised for finishing and light cuts on steel; a chipbreaker should be selected to match material, cutting mode and machine stability, as this insert is supplied without a chipbreaker. The square 12 mm size and 4.76 mm thickness provide stable seating in the holder and compatibility with a wide range of toolholders. For mixed production involving different workpiece geometries, maintaining consistent holder clamping and using inserts from the same batch and grade helps preserve surface quality across components. Technical queries and specification checks are welcome to ensure the right insert and holder combination is chosen for each application.

For reliable finishing performance with the Tungaloy NS520 cermet grade, contact Metav Werkzeuge for tailored application advice and rapid supply at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6806626
• Manufacturer SKU: TUN6806626
• Label: SNMA120412 NS520 Tungaloy-Wendeplatte
• Model series: ISO-Drehwendeschneidplatten
• Material: Hartmetall

Numbers / Core technical data

• Nose radius: 1.2 mm
• Plate size: 12 mm
• Plate thickness: 4.76 mm
• Clearance angle: 0°
• Main angle: 90°

Designs / Special features

• ISO indexable turning insert (SNMA)
• Grade: NS520 (cermet / coated cermet)
• Plate form: square
• Mounting: with cylindrical hole
• Chipbreaker: none
• Typical application: finishing and light turning of steel

FAQ

What applications is this insert intended for?
The SNMA120412 NS520 indexable insert is intended for finishing and light turning operations on steel, prioritising surface quality and dimensional control.

Which holders are compatible with this SNMA insert?
Compatibility is determined by insert form, clearance, tolerance class, fastening, size and thickness; the SNMA form with a cylindrical hole requires a holder or boring bar designed for square SNMA inserts.

What effect does the 1.2 mm radius have on machining?
A 1.2 mm nose radius provides a compromise between profile accuracy and edge strength, promoting good surface finish and consistent dimensions in finishing passes.

Is a chipbreaker included with this insert?
This product is supplied without a chipbreaker; selection of a suitable chip control geometry should be based on material, cutting mode and machine stability.

What material and grade is used for the cutting edge?
The insert is produced from carbide (Hartmetall) and furnished in the NS520 cermet or coated cermet grade for enhanced finish and uniform wear behaviour.

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.