CNMG 120408 AH120 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD-coated carbide AH120 grade, a 0.8 mm corner radius and an ISO-standard rhombic geometry to achieve reliable, sharp-edge performance in turning processes; order the CNMG120408 directly via Metav Werkzeuge or consult the technical team for selection and compatibility advice.

CNMG 120408 AH120 — CNMG120408 AH120 Turning Insert by Tungaloy

The CNMG120408 AH120 is an ISO-standard rhombic turning insert designed for process-secure external and internal turning where a sharp cutting edge and stable performance are required.

• ISO CNMG 120408 rhombic geometry
• PVD-coated carbide AH120 grade
• 0.8 mm corner radius for edge security
• Double-sided chipbreaker, 80° cutting angle

Consistent machining performance with a sharp, durable edge

The insert combines a PVD-coated surface with a wear-resistant carbide substrate in the AH120 grade, providing improved edge stability under interrupted cuts and reproducible results in series production. The coating reduces flank wear and supports a sharp cutting edge that helps to maintain dimensional accuracy over extended tool life. For production planners, this means fewer insert changes and steadier component tolerances, contributing directly to higher machine availability and predictable process windows.

ISO conformity and clamping compatibility for repeatable setup

Designed to the ISO CNMG120408 designation, the rhombic geometry and 80° cutting angle ensure broad compatibility with standard external holders and boring bars. Important parameters that determine fitment are form, free clearance, tolerance class, fastening method, size and thickness; the system typically comprises the ISO insert, a suitable outside holder or boring bar, a support/clamping kit and replacement screws. Observing these interfaces ensures repeatable seating and stable contact between insert and toolholder, which is essential for repeatable cycle times and consistent surface finishes.

Improved chip control and process reliability

The double-sided chipbreaker design supports controlled chip formation when paired with an appropriate chipformer and operating conditions. Selecting the correct chipbreaker and grade in relation to workpiece stability and operation type reduces built-up edge and catastrophic chipping. The combination of a robust substrate and a PVD finish yields improved tool life and process reliability, which in turn reduces downtime and contributes to overall cost-efficiency in turning cells. Assistance with matching chipbreaker geometry and cutting data is available for complex or high-stability setups.

Contact Metav Werkzeuge to specify CNMG120408 AH120 inserts for production use, request a tailored recommendation or technical matching for holders and clamping systems via info@metav-werkzeuge.com or by phone at +49 2822 7131930

Technical Data

• Article number: 6810101
• Manufacturer SKU: TUN6810101
• SKU: 6810101-Tungaloy
• Manufacturer: Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Product name: CNMG120408 AH120 Tungaloy insert

Core technical data

• Cutting angle: 80°
• Insert size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Clearance angle: 0°
• ISO code: 120408

Special features

• Material: carbide
• Coating: PVD-coated
• Grade: AH120
• Chipbreaker: double-sided
• Geometry: rhombic (CNMG)
• Hole style: cylindrical hole
• Application: turning
• System components: insert, holder/boring bar, support/clamping set, replacement screws

FAQ

What applications suit this insert best?
The CNMG120408 AH120 insert by Tungaloy is intended for external and internal turning where a combination of a sharp cutting edge and process security is required; it is recommended to match chipbreaker and grade to workpiece stability and machining type.

How should compatibility with a toolholder be checked?
Compatibility depends on insert form, free clearance, tolerance class, fastening method, size and thickness; the ISO designation CNMG120408 facilitates selection of a suitable outside holder or boring bar.

What benefits does the PVD coating deliver?
The PVD-coated finish on the AH120 grade improves flank-wear resistance and supports a stable cutting edge, which contributes to longer usable life and steadier part quality when using the CNMG120408 insert.

Is the insert indexable on both sides?
The insert features a double-sided chipbreaker and is designed for indexing; rotation and indexing depend on the specific holder used and the required cutting geometry.

Which system parts are typically required for use?
Typical system components are the ISO insert itself, a compatible external holder or boring bar, a support/clamping kit and replacement screws to ensure secure clamping and repeatable seating.

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.