WNMG 080404 GT720 Wendeplatten - Tungaloy

Take advantage of the GT720 cermet grade and the precise 0.4 mm nose radius to achieve consistently high surface quality and tight dimensional control in finishing and light turning operations; order the inserts directly via Metav Werkzeuge or ask their consultants for application guidance.

WNMG 080404 GT720 Tungaloy indexable insert for turning — cermet grade for finishing

A WNMG 080404 GT720 Tungaloy indexable turning insert engineered for finishing to light turning of steel, prioritising superior surface finish and repeatable dimensional accuracy.

• Cermet GT720 for superior surface finish
• Trigon shape WNMG 08 for versatile turning
• 0.4 mm nose radius for fine detail
• 80° lead angle with cylindrical central hole

Achieve better surface finishes with a cermet grade optimised for steel

The GT720 grade is a cermet or coated cermet formulation developed for finishing and light machining of steel, giving a clear advantage where surface finish and dimensional accuracy matter. Cermet substrates balance hardness and toughness: the result is a consistently fine topography and uniform wear, which reduces the need for frequent adjustment and supports process stability. For shops upgrading from conventional carbide to a cermet grade, the immediate benefit is improved part appearance and reduced secondary finishing.

Secure mounting and straightforward compatibility with ISO systems

Compatibility with toolholders is determined by form, clearance angle, tolerance class, fastening method, size and thickness. The trigon WNMG 080404 form and the cylindrical central hole provide repeatable clamping in standard ISO external holders and boring bars; correct seating ensures stable cutting conditions and predictable results. Specifying inserts that match the holder geometry and tolerance class reduces vibration and contributes directly to tool life and part consistency.

Geometry that supports fine detail and controlled feeds

The 0.4 mm nose radius offers a practical compromise between surface quality and feed capability: a smaller radius favours a smoother finish at low feeds, while still allowing modest material removal when stability permits. The double-sided chipbreaker supports chip control during finishing passes and simplifies inventory management because each indexable edge can be used. Selecting the appropriate chipbreaker and grade in accordance with workpiece stability and machining strategy ensures efficient chip evacuation and a reliable process window.

Integrating the insert into a complete tooling system

This ISO-series insert forms part of a system comprising the ISO turning insert, a matched external holder or boring bar, a shim/clamp set and replacement screws. The carbide substrate and GT720 surface treatment make it suitable for steel machining tasks where repeatable turn finishes are required. When substituting inserts in existing setups, verify holder clearance and clamping to maintain the designed cutting geometry and so preserve the expected benefits of the grade and shape.

For optimised finishing with Tungaloy’s GT720 cermet inserts, consult Metav Werkzeuge for tailored advice and application support at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6851602
• Manufacturer SKU: TUN6851602
• SKU: 6851602-Tungaloy
• ISO designation: WNMG080404

Core data

• Nose radius: 0.4 mm
• Plate thickness: 4.76 mm
• Lead angle: 80°
• Insert size: 08

Special features

• Material: carbide
• Grade/coating: GT720 (cermet / coated cermet)
• Shape: trigon (WNMG)
• Clearance angle: 0°
• Hole style: cylindrical central hole
• Double-sided chipbreaker
• Application: turning (finishing to light machining)

FAQ

What materials is the WNMG 080404 GT720 insert best suited to?
The WNMG 080404 GT720 Tungaloy insert is designed primarily for steel machining, where the GT720 cermet grade delivers improved surface finish and consistent wear behaviour.

Can the insert be used in standard WNMG holders?
Compatibility depends on matching form, clearance angle, tolerance class, fastening, size and thickness; when the holder specifications align with the WNMG 080404 geometry, the insert seats and clamps securely for repeatable performance.

What does the 0.4 mm radius mean for finishing?
A 0.4 mm nose radius gives the insert fine edge geometry that favours a smooth surface at low feeds while still permitting modest material removal in stable setups, supporting the surface quality objective of the GT720 grade.

Is the insert single- or double-sided?
The WNMG 080404 GT720 insert features a double-sided chipbreaker, allowing both edges to be used and improving cost-efficiency per insert.

What system components are required when fitting this insert?
Typical system assembly includes the ISO insert, a matching external holder or boring bar, a shim/clamp set and replacement screws to ensure correct seating and clamping of the WNMG 080404 GT720 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.