SNMG 120408 GH330 Wendeplatten - Tungaloy

Benefit from the combination of the GH330 carbide grade, a 0.8 mm corner radius and a secure cylindrical‑hole clamping for consistent external and internal turning operations; these attributes support stable chip control and long tool life. Order the SNMG120408 GH330 Tungaloy indexable insert directly via Metav Werkzeuge or consult our specialists for selection support.

SNMG120408 GH330 indexable insert for turning — Tungaloy, 0.8 mm radius, double-sided chipbreaker

The SNMG120408 GH330 indexable insert is an ISO‑standard square insert designed for external and internal turning, combining a wear‑resistant carbide grade with a double‑sided chipbreaker and cylindrical hole for secure clamping.

• ISO form SNMG120408
• GH330 carbide grade
• Double-sided chipbreaker
• Cylindrical hole for secure clamping

Greater process reliability through matched geometry and grade

The insert is manufactured to ISO dimensions and a defined geometry that ensures repeatable seating in modern holders. The ISO‑standard form and a square plate outline with a 90° included angle provide predictable cutting conditions for many turning operations. Because compatibility depends on form, relief angle, tolerance class, clamping method, size and thickness, the insert integrates into a system consisting of a matching outside holder or boring bar, a shim/clamping kit and replacement screws. This system approach reduces setup variance and increases process stability.

Long tool life from a carbide grade balanced for wear and toughness

Tungaloy’s GH330 grade combines wear resistance with edge stability to extend service intervals in continuous turning. The substrate is cemented carbide, engineered to withstand abrasive and adhesive wear while maintaining a robust cutting edge. The result is fewer indexings per component batch and reduced downtime for insert changes, which improves overall productivity in workshop and production settings.

Controlled chip formation and surface quality with a double-sided breaker

The double‑sided chipbreaker design supports consistent chip control on both cutting edges, which is especially beneficial for changing cutting directions or when indexable inserts are rotated to new edges. The built‑in chip control contributes to safer swarf management, more uniform cutting forces and an improved surface finish, enabling efficient machining of internal and external profiles using the same insert geometry.

Precise dimensions and reliable clamping for repeatable performance

Key dimensions such as the 0.8 mm corner radius and 4.76 mm plate thickness are important for edge strength and seat fit. The cylindrical hole provides a positive location for clamping force in compatible toolholders, reducing the risk of movement under load. Together, these features support reproducible results when paired with correctly rated holders and clamping sets, helping to maintain tolerances and extend toolholder life.

Contact Metav Werkzeuge today for tailored tool recommendations or to request compatibility guidance for the SNMG120408 GH330 Tungaloy insert; phone +49 2822 7131930 or email info@metav-werkzeuge.com

Technical data

• Article number: 6806746
• SKU: 6806746-Tungaloy
• Manufacturer SKU: TUN6806746
• Model series: ISO indexable turning insert series

Facts

• Corner radius: 0.8 mm
• Plate size: 12 mm
• Plate thickness: 4.76 mm
• Included angle: 90°
• Relief angle: 0°
• Hole: with cylindrical hole

Special features

• Grade: GH330
• Material: cemented carbide
• Form: square
• Chipbreaker: double-sided
• Application: turning (external and internal)
• ISO designation: SNMG120408
• With cylindrical hole for secure clamping

FAQ

Is this insert compatible with standard SNMG holders?
Compatibility is determined by the holder form, relief angle, tolerance class, clamping and plate thickness; the SNMG120408 GH330 Tungaloy insert fits ISO‑standard SNMG holders when those parameters match.

What benefits does the GH330 grade provide?
The GH330 grade used in the SNMG120408 insert offers a balance of wear resistance and edge stability, extending edge life and supporting consistent surface quality in turning operations.

Can the insert be used for both external and internal turning?
Yes, the SNMG120408 GH330 indexable insert is suitable for external and internal turning when mounted in the appropriate outside holder or boring bar and clamped correctly.

How does the double-sided chipbreaker affect productivity?
The double-sided chipbreaker on the SNMG120408 insert provides reliable chip control on both cutting edges, reducing swarf issues and enabling longer runs with fewer indexings.

What should be checked when fitting this insert to a toolholder?
Check form fit, relief angle, tolerance class, clamping method, plate size (12 mm) and thickness (4.76 mm) to ensure safe seating and repeatable performance with the SNMG120408 GH330 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.