SNMG 120408 GT720 Wendeplatten - Tungaloy

Take advantage of the GT720 cermet grade for superior surface finish and consistent wear resistance, combined with the ISO SNMG120408 geometry for reliable compatibility with standard turning holders; order directly via Metav Werkzeuge or consult our technical team for application support.

SNMG120408 GT720 Tungaloy insert — ISO turning insert for finishing steel

The SNMG120408 GT720 Tungaloy insert is an ISO-format, square, indexable turning insert designed for finishing to light machining of steel, delivering consistent surface quality and dimensional control.

• Cermet grade GT720 for fine finishing
• ISO SNMG geometry, 90° cutting angle
• 0.8 mm corner radius for consistent profile
• Double-sided insert with cylindrical hole

Optimised finishing performance for consistent surface quality

The cermet-based GT720 grade is tuned for finishing and light machining of steel, emphasising surface quality and dimensional stability. Cermet combines high hot hardness and favourable wear behaviour to reduce built-up edge and promote uniform flank wear, which helps maintain tolerances over extended runs. This results in fewer rework cycles and steadier component quality when precise profiles and fine surfaces are required.

Stable geometry that simplifies holder compatibility and set-up

The ISO SNMG120408 geometry with a 90° cutting face and a 0° clearance angle provides predictable engagement and a neutral cutting direction, suitable for many external and internal turning tasks. The 0.8 mm corner radius supports consistent contouring without excessive cutting forces, while the square form and cylindrical centre hole ensure firm clamping in standard ISO external holders and boring bars. Compatibility is governed by insert form, clearance angle, tolerance, fastening, size and thickness, enabling straightforward integration into existing tool systems.

System-level advantages that support productivity and repeatable results

As part of a complete turning system — insert, matching external holder or boring bar, support pad/clamping set and replacement screws — this grade and geometry help standardise process parameters across batches. The 4.76 mm plate thickness and 12 mm inscribed circle yield rigid seating and repeatable tool offsets, and the double-sided chipbreaker extends usable life per index. Selecting the chipbreaker and grade to suit workpiece stability and machining strategy reduces cycle time variability and contributes to predictable tool-change intervals.

For reliable finishing results with the SNMG120408 GT720 Tungaloy insert, contact Metav Werkzeuge for tailored application advice or availability — email info@metav-werkzeuge.com or call +49 2822 7131930.

Technical Data

• Article number: 6851513
• Manufacturer SKU: TUN6851513
• SKU: 6851513-Tungaloy

Facts

• Inscribed circle: 12 mm
• Plate thickness: 4.76 mm
• Corner radius: 0.8 mm
• Clearance angle: 0°
• Cutting angle: 90°

Special features

• Carbide substrate
• Cermet / coated cermet grade GT720
• ISO SNMG120408 geometry
• Square plate form
• Double-sided chipbreaker
• Cylindrical centre hole
• Recommended for turning (finishing to light machining of steel)
• Compatibility with standard ISO external holders and boring bars

FAQ

Is this insert suitable for finishing steel? Yes. The SNMG120408 GT720 Tungaloy insert is specifically designed for finishing and light machining of steel, prioritising surface finish and dimensional accuracy.

Which holders fit this ISO insert? Compatibility is achieved with ISO-format external holders or boring bars that match the insert form, clearance angle, tolerance class, fastening method, size and thickness specified for SNMG120408.

What are the key geometry and size data to note? Key data include a 12 mm inscribed circle, 4.76 mm thickness, 0.8 mm corner radius and a 90° cutting angle; these dimensions determine seating rigidity and cutting behaviour.

What material and grade does the insert use? The insert is manufactured on a carbide substrate and supplied in the GT720 cermet grade, suitable for fine finishing applications.

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.