VNMA 160404 NS520 Wendeplatten - Tungaloy

Benefit from the VNMA160404 NS520’s combination of consistent surface finish, reliable edge life and ISO compatibility for streamlined turning processes; order the insert directly via Metav Werkzeuge or consult our tooling specialists for application-specific advice.

VNMA160404 NS520 turning insert (ISO VNMA 160404) by Tungaloy — Cermet finishing grade, 0° relief

VNMA160404 NS520 is an ISO-indexable turning insert designed for finishing and light machining of steel, offering precise geometry and compatibility with standard VNMA holders.

• ISO rhombic insert VNMA 160404
• Cermet grade NS520 for finishing
• Radius 0.4 mm for fine detail
• 0° relief angle, 35° cutting angle

Precision finishing and consistent surface quality

The VNMA160404 NS520 insert is optimised for finishing to light machining, where surface finish and dimensional precision are decisive. The cermet-based composition reduces built-up edge and promotes steady wear, delivering stable part geometry across a production run. As a result, finishing passes achieve improved visual and metrological outcomes with fewer interventions, which supports predictable downstream processes and reduces rework.

Predictable clamping and ISO interchangeability

Compatibility follows ISO norms for indexable plates: form, size, thickness and locating features determine holder fit and repeatability. The rhombic ISO shape, cylindrical hole and standard mounting thickness enable straightforward replacement in matching VNMA external holders or boring bars. The geometry—including the 0° relief angle and 35° cutting angle—ensures repeatable seating and controlled cutting engagement for predictable toolpath planning and part consistency.

Material behaviour and wear control

Manufactured as a coated Cermet (NS520) on a robust carbide substrate, the insert emphasises surface integrity and even edge recession rather than aggressive metal removal. This composition supports stable chip formation when machining steel, prioritising fine finishes and dimensional stability in light-turning operations. The absence of an integrated chipbreaker means the grade focuses on finish quality; chip control is managed via appropriate holder geometry and cutting parameters.

System considerations and application guidance

Intended for both external and internal turning, the plate performs best in finishing and light turning applications when combined with a matched holder, a suitable shim/clamping kit and correct tightening elements. The system setup—insert, holder, underlay and fastening—determines vibration resistance and reproducible results. For workshops seeking to integrate the plate into existing tooling stocks, compatibility checks against holder form, clearance and tolerance class are recommended to preserve clamping integrity and machining stability.

Contact Metav Werkzeuge for tailored tooling recommendations, application matching and rapid supply — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6809412
• Manufacturer SKU: TUN6809412
• SKU: 6809412-Tungaloy
• Designation: VNMA160404 NS520

Facts

• Grade: NS520
• Material: carbide (cermet/coated cermet)
• Corner radius: 0.4 mm
• Thickness: 4.76 mm
• Size: 16 mm
• Relief angle: 0°
• Cutting angle: 35°

Design features

• Rhombic shape (VNMA)
• Cylindrical locating hole
• ISO-indexable plate
• For turning: finishing to light machining
• No integrated chipbreaker

FAQ

What applications suit this cermet insert best? The VNMA160404 NS520 is intended primarily for finishing and light turning of steel, where surface quality and dimensional control are priorities.

Is the insert compatible with standard VNMA holders? Yes — the ISO VNMA form, thickness and locating hole permit use in matching VNMA external holders and boring bars when the holder accepts the VNMA 160404 geometry.

What does the NS520 grade offer compared with conventional carbide? NS520 is a cermet/coated cermet grade optimised for surface finish and consistent wear, giving the insert advantages in finishing passes over some standard carbide grades.

Can this insert be used for internal turning? The insert is suitable for both external and internal turning when installed in an appropriate holder or boring bar designed for ISO VNMA plates.

What is the manufacturer SKU for ordering and reference? The manufacturer SKU is TUN6809412 and the article number is 6809412 for the VNMA160404 NS520 insert by Tungaloy.

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.