SNMG 120408 GH330 Wendeplatten - Tungaloy

Benefit from a combination of wear-resistant GH330 grade, robust carbide construction and a precise 0.8 mm corner radius to improve process stability and surface finish in turning operations; order the original insert through Metav Werkzeuge or request application advice from our consultants.

SNMG120408 GH330 Tungaloy turning insert — square 12 mm, 0.8 mm radius

SNMG120408 GH330 is a square ISO-rated turning insert for external and internal turning, designed for reliable chip control and repeatable edge stability in a wide range of machining tasks

• Tungaloy GH330 grade for wear resistance
• Square 12 mm insert, 0.8 mm corner radius
• Double-sided chipbreaker for reliable chips
• Carbide substrate with cylindrical hole

Improved tool life and cutting-edge stability with GH330

The GH330 carbides are formulated to combine wear resistance and toughness, enabling consistent performance in interrupted and continuous cuts. Built on a solid carbide substrate, the geometry balances edge stability and fracture resistance so that high metal removal rates can be sustained without premature edge breakdown. This results in a measurable reduction in tool changes and predictable tool lifetime, supporting efficient production scheduling and reduced machine downtime. The material and grade selection are engineered to complement the insert geometry, providing a pragmatic trade-off between abrasion resistance and chipping tolerance.

Fast, error-free tool changes thanks to ISO conformity

As an ISO turning indexable insert, the SNMG120408 is intended for systems composed of an insert, a matched external holder or boring bar, and the appropriate shim/clamp and screws. Compatibility is determined by form, relief angle, tolerance class, clamping method, size and thickness; these parameters are standardised to simplify toolholder selection and to enable quick, repeatable insert exchanges. The 0° relief angle and square form ensure predictable seating and orientation in holders that accept SNMG geometry, making setup times shorter and reducing the risk of misalignment-related defects.

Geometry and chip control that support surface quality

The combination of a double-sided chipbreaker and a 0.8 mm corner radius delivers controlled chip formation and improved surface finish on turned parts. The insert’s square 12 mm outline provides four usable cutting edges, enhancing economy per indexation, while the cylindrical hole secures reliable clamping in compatible holders. For external and internal turning tasks, selecting the correct chipbreaker and grade tailored to the workpiece material and machining stability will result in consistent surface quality and efficient swarf evacuation, particularly in medium- to heavy-duty turning operations.

For technical consultation or to secure original Tungaloy SNMG120408 GH330 inserts, please contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930.

Technical data

• Article number: 6806755
• Manufacturer SKU: TUN6806755
• SKU: 6806755-Tungaloy

Core dimensions

• ISO designation: 120408
• Insert form: square
• Plate size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Relief angle: 0°
• Included angle: 90°

Design & special features

• Material: carbide
• Grade/coating: GH330
• Chipbreaker: double-sided
• Hole style: cylindrical hole
• Application: turning
• Model series: ISO turning indexable inserts

FAQ

What materials is this insert suitable for?
The SNMG120408 GH330 insert is a general-purpose carbide grade designed for a broad material range; selection of the chipbreaker and machining parameters should be matched to the specific workpiece material to optimise performance.

How is the insert secured in the toolholder?
The insert uses a cylindrical hole and is clamped into compatible holders or boring bars in accordance with the SNMG form and ISO tolerances to ensure stable seating and repeatable orientation.

How many usable edges does the insert provide?
As a square ISO insert, it offers four cutting edges per indexable piece; the double-sided chipbreaker allows reuse of both sides where the holder permits.

Is the SNMG120408 GH330 suitable for internal turning?
Yes, the insert’s geometry and chip control make it suitable for both external and internal turning tasks when installed in an appropriate boring bar or holder and combined with suitable process parameters.

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.