TNMG 220404 GH330 Wendeplatten - Tungaloy

Take advantage of the ISO-standard geometry and the GH330 grade to secure consistent edge life and simplified tool management; the combination of a cemented carbide substrate, a 0.4 mm nose radius and a double-sided chipbreaker enables efficient turning cycles with reduced downtime. Order the insert via Metav Werkzeuge or consult the team for application matching and stock information.

TNMG220404 GH330 Tungaloy indexable insert — triangular ISO turning insert with 60° cutting angle

The TNMG220404 GH330 Tungaloy insert is an ISO‑standard triangular turning insert designed for external and internal turning applications, offering a balanced mix of wear resistance and edge stability for general-purpose turning.

• ISO-standard TNMG geometry, 60° triangle
• GH330 grade for wear resistance and toughness
• Cemented carbide substrate for long tool life
• 0.4 mm nose radius for versatile finishing
• Double-sided chipbreaker with cylindrical hole

Precise ISO geometry for repeatable, accurate turning

The ISO designation and triangular form provide a predictable and repeatable seating in compatible holders, which reduces set-up time and ensures consistent cutting geometry across batches. The 60° cutting angle and 0° relief angle contribute to a stable cutting edge under varied cutting conditions, while the central cylindrical hole guarantees secure clamping in standard clamping systems. This standardisation means fewer adjustments when replacing inserts, supporting steady production and reliable part tolerances.

Advanced GH330 grade for extended edge stability

The Tungaloy GH330 grade integrates wear resistance with sufficient toughness to withstand intermittent cutting loads and edge stress. Mounted on a cemented carbide substrate, the grade is engineered to preserve cutting-edge integrity over longer cycles, which helps to reduce the frequency of index changes and tool inventory costs. The double-sided chipbreaker improves chip control and assists in maintaining surface quality, particularly when the machining strategy prioritises a balance between life and finish.

Versatile geometry for finishing and general machining

A 0.4 mm nose radius offers a compromise between fine surface finish and the capacity to absorb moderate cutting forces, making the insert suitable for both light finishing and certain medium-duty operations. The plate thickness of 4.76 mm and 22 mm size deliver the mechanical support required for stable cuts. The insert’s triangular shape provides three usable cutting edges per side, while the double-sided chipbreaker allows reversing for extended edge utilisation, enhancing overall cost efficiency per edge.

System compatibility and practical handling benefits

This insert performs best as part of a complete ISO system: an ISO insert, a matching external holder or boring bar, shims/clamp sets and replacement screws. Compatibility is determined by form, relief angle, tolerance class, fastening, size and thickness, so selecting the correct holder is essential for optimal performance. The indexable design reduces changeover times and inventory complexity, and the robust construction supports repeatable clamping and predictable tool life, which together help to maintain a smooth production flow.

Contact Metav Werkzeuge for application-specific recommendations on Tungaloy turning inserts or to request availability; email info@metav-werkzeuge.com or call +49 2822 7131930 for prompt assistance

Technical Data

• Article number: 6836610
• SKU: 6836610-Tungaloy
• Manufacturer SKU: TUN6836610
• Name: TNMG220404 GH330 Tungaloy‑Wendeplatte
• Material: cemented carbide

Facts

• Radius: 0.4 mm
• Cutting angle: 60°
• Relief angle: 0°
• Plate thickness: 4.76 mm
• Plate size: 22 mm

Features

• ISO‑standard triangular indexable insert
• Double‑sided chipbreaker
• Cylindrical central hole for secure clamping
• Compatible with ISO turning holders and clamping sets
• GH330 Tungaloy grade for balanced wear resistance and toughness

FAQ

What holders are compatible with this TNMG insert?
Compatibility is determined by the insert’s form, relief angle, tolerance class, fastening method, size and thickness; the TNMG220404 GH330 insert fits standard ISO TNMG‑type external holders and appropriate boring bars when the holder matches those parameters.

How many cutting edges are available per insert?
The triangular geometry provides three cutting edges per side; with the double‑sided design of the TNMG220404 GH330 insert, multiple edges can be indexed to extend usable life.

Is the GH330 grade suitable for heavy interrupted cuts?
The GH330 grade balances wear resistance and toughness to offer good edge stability; for heavily interrupted cuts, review holder rigidity and cutting parameters to ensure suitability with the TNMG220404 GH330 insert.

What does the 0.4 mm nose radius mean for surface finish?
A 0.4 mm nose radius yields a compromise between surface quality and cutting robustness, enabling finer finishes than larger radii while still tolerating moderate cutting forces when using the correct machining strategy.

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.