SNMG 120412 AH120 Wendeplatten - Tungaloy

High wear resistance and a consistently sharp cutting edge make this PVD-coated carbide insert a reliable choice for productive turning; its ISO SNMG form and secure cylindrical hole ensure straightforward integration into standard holders. Order through Metav Werkzeuge or consult our specialists for application matching.

SNMG 120412 AH120 ISO indexable turning insert – PVD-coated carbide, 90° square, Tungaloy

The SNMG 120412 AH120 is an ISO-format indexable insert for turning, engineered for stable external and internal operations where a sharp cutting edge and process security are required.

• PVD-coated carbide AH120 for wear resistance
• 90° square shape with 1.2 mm nose radius
• Cylindrical hole for secure clamping
• Double-sided geometry for economical indexing

Productive, consistent cutting performance for turning operations

The PVD-coated carbide grade AH120 combines a wear-resistant surface with a geometry designed to maintain a sharp cutting edge under production conditions. This results in consistent chip formation and reliable performance during both roughing and finishing passes. The coating enhances resistance to abrasive wear and reduces the risk of edge chipping, which contributes to predictable tool life and fewer unplanned tool changes. For manufacturers seeking steady cycle times and repeatable results, this indexable solution supports a more efficient turning process.

Seamless compatibility within ISO clamping systems

Designed to the ISO SNMG form, the insert’s dimensions—12 mm across the square, 4.76 mm thickness and 1.2 mm nose radius—match common holder pockets and clamping systems. The 90° approach angle and 0° clearance angle define the cutting orientation, while the cylindrical hole ensures secure mechanical fixation with standard screws and underplates. Compatibility depends on holder form, clearance angle and tolerance class, so selecting the correct external holder or boring bar, plus the appropriate underlay and clamping set, guarantees stable seating and repeatable positioning during indexation.

Economical indexing and adaptable chip control

The double-sided chipbreaker layout enables economical use through indexation and reduces tooling costs per cutting edge. Chip control is achieved by choosing a chipbreaker and grade suited to the workpiece material and the machine–workpiece–tool rigidity. The AH120 alloy is formulated to offer both wear resistance and resistance to chipping, making it suitable where a balance of a sharp edge and process security is required. This adaptability helps maintain surface quality while reducing the frequency of edge breakage that interrupts production.

Operational benefits that support uptime and planning

Using a standard ISO insert with clearly defined dimensions simplifies stock handling and tool management. The standardised form factor eases replacement and reduces downtime when changing inserts or reconfiguring toolposts. With the appropriate holder and clamping parts on hand, maintenance becomes predictable: spare screws and underplates allow quick reassembly. Overall, the combination of PVD coating, robust substrate and indexable design contributes to improved machine uptime and cost-effective production planning.

For specific application advice or to order SNMG 120412 AH120 inserts from Tungaloy, contact Metav Werkzeuge for tailored recommendations and availability at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6814587
• Manufacturer SKU: TUN6814587
• Brand: Tungaloy
• Model series: ISO indexable turning inserts

Dimensions & core data

• Insert size: 12 mm
• Thickness: 4.76 mm
• Nose radius: 1.2 mm
• Approach angle: 90°
• Clearance (rake) angle: 0°
• Hole: with cylindrical hole

Design & features

• Material: carbide
• Coating/grade: PVD-coated AH120
• Shape: square
• Chipbreaker: double-sided
• Application: turning (external and internal)
• ISO designation: SNMG120412

FAQ

What cutting tasks is this insert intended for?
The SNMG 120412 AH120 insert from Tungaloy is intended for turning operations, including both external and internal turning where a sharp cutting edge and process security are required.

Which materials benefit most from the AH120 grade?
The AH120 PVD-coated carbide grade is formulated to resist wear and edge chipping; select the chipbreaker and cutting data according to the specific workpiece material and machining stability for best results with the SNMG 120412 AH120 insert.

How is the insert secured in the holder?
The SNMG 120412 uses a cylindrical hole for secure mechanical clamping; compatibility and correct seating depend on the holder shape, clearance angle and tolerance class.

What are the key dimensions to check when replacing an insert?
Check the insert size (12 mm), thickness (4.76 mm), nose radius (1.2 mm) and the 90° geometry to ensure the SNMG 120412 AH120 matches the intended holder pocket and cutting orientation.

How does the double-sided geometry affect economy?
The double-sided chipbreaker allows indexing to the alternate side, extending usable life per insert and reducing tooling costs while maintaining productivity for the SNMG 120412 AH120 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.