DNGA 150404 NS520 Wendeplatten - Tungaloy

Take advantage of the combination of ISO-standard compatibility, the NS520 cermet grade for superior surface quality, and a small 0.4 mm corner radius for fine finishing — all designed to keep turning operations productive and predictable. Order the insert directly via Metav Werkzeuge or consult our specialists for application advice.

DNGA 150404 NS520 Tungaloy indexable insert for turning (rhombic, 55° geometry)

The DNGA150404 NS520 Tungaloy is an ISO-standard rhombic indexable insert intended for precision external and internal turning, optimised for finishing and light machining of steel.

• ISO rhombic insert DNGA150404, 55° geometry
• NS520 cermet grade for finishing of steel
• 0.4 mm corner radius for fine surface finish
• Cylindrical hole, 4.76 mm thickness for secure clamping

Consistent finish and controlled wear for high-quality components

The insert is manufactured in the NS520 cermet grade, formulated to deliver excellent surface finish and tight dimensional control during finish turning. Cermet materials combine ceramic hardness with metal toughness to reduce flank wear and improve edge retention under finishing conditions; this results in more consistent part geometry over extended runs. The 0.4 mm corner radius helps produce fine surface textures without promoting edge chipping when used with appropriate feeds and stable clamping. For shops focused on repeatable quality, this combination reduces rework and supports efficient downstream assembly processes.

Seamless integration into ISO tooling systems for versatile use

Designed as an ISO-standard indexable plate, compatibility with holders is defined by form, clearance angle, tolerance class, attachment method, size and thickness. The 15 mm plate size and 4.76 mm thickness align with common holder families, while the cylindrical hole provides secure seating and repeatable location during indexing. The absence of a chipbreaker (chipformer: none) indicates that the insert is optimised for finishing cuts and requires controlled chip evacuation via machining parameters and stable set-up. Engineers can therefore expect predictable behaviour when matching the insert to a suitable external or internal turning holder.

Geometry and handling that support productivity and process stability

The rhombic plate form with a 55° cutting geometry and 0° clearance offers a balance between accessibility for internal features and a robust cutting edge for external passes. The combination of geometry and the NS520 coating concept yields good edge life in finishing applications and consistent results across batches. Indexable inserts minimise downtime because worn edges are rotated rather than reconditioned; the ISO system also simplifies inventory management. Production managers will value the insert’s predictable wear patterns and the straightforward criteria for selecting matching holders and clamping kits.

For precision finishing with Tungaloy’s NS520 cermet insert, contact Metav Werkzeuge for technical advice and procurement at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6803156
• Manufacturer SKU: TUN6803156
• SKU: 6803156-Tungaloy
• Brand: Tungaloy

Dimensions & geometry

• Insert size: 15 mm
• Thickness: 4.76 mm
• Corner radius: 0.4 mm
• Clearance angle: 0°
• Cutting angle: 55°

Materials & features

• Grade/coating: NS520 (cermet / coated cermet)
• Substrate: cemented carbide
• Application: turning — finishing to light machining of steel
• Chipbreaker: none
• System: ISO-standard indexable insert
• Hole style: cylindrical hole
• Plate form: rhombic (DNGA)

FAQ

What applications suit this insert best?
The DNGA150404 NS520 Tungaloy insert is primarily designed for precision external and internal turning where finishing and dimensional accuracy on steel are required.

How does the NS520 grade affect performance?
The NS520 cermet grade improves surface quality and wear resistance in finishing operations, giving more uniform wear and longer periods between indexings.

Is a specific holder required for this plate?
Compatibility depends on holder form, clearance angle, tolerance class, attachment and plate thickness; the ISO-standard form and the cylindrical hole make it compatible with many standard DNGA holders.

Can this insert handle roughing cuts?
This insert is optimised for finishing to light machining; because it has no chipbreaker and a fine corner radius, stable setups and conservative cutting parameters are recommended rather than heavy roughing passes.

What does the 0° clearance and 55° geometry mean for machining?
A 0° clearance reduces radial relief for a stronger cutting edge, while the 55° geometry offers a versatile approach angle suitable for external profiles and some internal turning tasks.

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.