SNMG 120408 AH120 Wendeplatten - Tungaloy

Taking advantage of a PVD-coated carbide grade and a double-sided chipbreaker, this insert combines durable edge life with predictable chip control for turning operations; order via Metav Werkzeuge or request application guidance from their consultants.

SNMG 120408 AH120 indexable turning insert for turning by Tungaloy

The SNMG120408 AH120 is a square ISO turning insert designed for general external and internal turning with a focus on process security and a sharp, wear-resistant cutting edge.

• PVD-coated carbide for enhanced wear resistance
• Double-sided chipbreaker for versatile turning
• 0.8 mm corner radius, 90° square geometry
• ISO compatibility; cylindrical hole for secure clamping

Stable cutting performance with a wear-resistant grade

The combination of PVD-coated carbide and the AH120 grade provides a balance between a sharp cutting edge and resistance to flank wear, supporting consistent tool life under varied turning conditions. The coated substrate reduces abrasive wear and increases thermal stability during continuous cuts, which improves the predictability of the machining process. For operations requiring durable edges and steady chip formation, this geometry helps maintain dimensional accuracy and reduces the frequency of insert changes, contributing to uninterrupted production cycles.

Rigid geometry for reliable chip control and strength

A 0.8 mm corner radius paired with a 90° square format delivers mechanical strength at the cutting edge while permitting robust cutting parameters. The double-sided chipbreaker is optimised for both light and medium cuts and aids in breaking chips into manageable lengths, lowering the risk of long swarf and improving surface finish. The 4.76 mm thickness of the insert increases stiffness in the cutting zone, making it suitable for applications where vibration damping and edge stability are priorities. The cylindrical hole and standard fastening interface ensure secure clamping in ISO-compatible holders.

ISO-series compatibility and practical application guidance

The insert is part of the ISO turning inserts model series and is compatible with holders that match the insert form, clearance angle, tolerance class, clamping method, size and thickness. Typical uses include both outside and inside turning where a sharp, process-secure edge is required. Selection of the correct chipbreaker and grade should be aligned with the workpiece material and machining strategy. The SNMG120408 designation identifies the insert geometry and size so that correct holder and underlay selection is straightforward, reducing setup time and ensuring consistent interchangeability across machines.

For trustworthy, productive turning with Tungaloy’s AH120 inserts, contact Metav Werkzeuge for availability and tailored application advice — info@metav-werkzeuge.com | +49 2822 7131930

Technical Data

• Article number: 6806765
• Manufacturer SKU: TUN6806765
• SKU: 6806765-Tungaloy
• Model series: ISO turning inserts
• ISO designation: SNMG120408
• Grade/coating: AH120, PVD-coated carbide
• Material: carbide

Facts

• Shape: square
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Included angle: 90°
• Clearance angle: 0°
• Hole: with cylindrical hole

Features

• Chipbreaker: double-sided
• Application: turning (external and internal)
• Compatibility determined by form, clearance, tolerance class, clamping, size and thickness
• Typical system: insert + suitable external holder or boring bar + underlay/clamping set + replacement screws

FAQ

What materials is this insert intended for?
The SNMG120408 AH120 insert is designed as a wear- and break-resistant solution for turning applications; material-specific chipbreaker and grade selection should be made to suit the workpiece and machining strategy.

How does the AH120 grade affect performance?
The AH120 PVD-coated carbide grade provides a sharp cutting edge with improved wear resistance and process security, supporting consistent edge life under typical turning conditions.

Is the insert reversible or single-use?
This is a double-sided indexable insert; the double-sided chipbreaker allows turning on both sides, extending effective usage before replacement.

What should be checked for holder compatibility?
Compatibility is determined by insert form, clearance angle, tolerance class, clamping method, size and thickness; confirm that the holder matches the SNMG120408 geometry and the 4.76 mm thickness.

Does the 0° clearance angle limit applications?
The specified 0° clearance angle is a neutral geometry characteristic; holders and cutting conditions should be selected accordingly to ensure correct rake and clearance in specific turning tasks.

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.