CNMA 120412 FX105 Wendeplatten - Tungaloy

The combination of ISO conformity, the FX105 Tungaloy grade and a 1.2 mm corner radius delivers a robust, versatile solution for external and internal turning; order directly via Metav Werkzeuge or request tailored machining advice from our consultants.

CNMA120412 FX105 Tungaloy – ISO rhombic turning insert, 1.2 mm radius

The CNMA120412 FX105 Tungaloy indexable insert is engineered for general external and internal turning, offering a balance of wear resistance and edge stability for versatile workshop use

• ISO‑standard rhombic insert 80° geometry
• FX105 grade for wear resistance and edge stability
• 1.2 mm corner radius for durable performance
• Cylindrical hole for secure clamping

Proven geometry for reliable turning results

The rhombic ISO geometry with an included angle of 80° provides stable engagement for both finishing and medium stock removal. Thanks to the 1.2 mm corner radius, the insert tolerates interrupted cuts and uneven workpiece surfaces with reduced risk of edge chipping. The 0° clearance angle facilitates consistent contact with the workpiece and predictable cutting forces, which supports stable machining when used with an appropriate holder or boring bar. For workshops seeking repeatable component quality, this geometry aids cycle-time consistency and predictable tool life.

Material and grade engineered for productivity

Manufactured from carbide and supplied in Tungaloy's FX105 grade, the insert combines hardness for wear resistance with sufficient toughness to withstand varying cutting conditions. This grading is suitable for a broad range of turning tasks where a dependable balance between flank wear resistance and edge integrity is required. The result is longer effective cutting intervals and fewer insert changes, contributing to improved process economy and reduced downtime in production environments.

System compatibility and mounting guidance

Compatibility with the chosen holder is determined by form, clearance angle, tolerance class, clamping method, size and thickness. The insert integrates into a standard system consisting of the ISO indexable plate, a matching outer holder or boring bar, a shim/clamp set and replacement screws. The presence of a cylindrical hole simplifies positive locating and clamping, improving repeatability when replacing inserts. Select a holder whose seat geometry and tolerance class match the plate dimensions to maintain axial and radial run-out control.

Choosing chipfinders and application strategy

Although this item is supplied without a chipbreaker, selecting an appropriate chip control geometry and insert grade is crucial: match the chipbreaker style and the FX105 grade to the workpiece material, the machining operation and machine-tool rigidity. For light finishing pass work, the rhombic shape and small radius favour surface quality; for heavier passes, ensure machine stability and consider reduced depths of cut or lower feed to preserve edge life. This measured approach supports efficient material removal while protecting cutting edges.

Practical benefits for production workshops

Integrating ISO‑compliant inserts such as this one streamlines inventory and tool-change procedures across multi-machine shops. The standardised form factor reduces setup complexity and supports quick replacement. Combined with the FX105 carbide grade and robust corner radius, the design promotes predictable tool performance, helping to shorten process ramp-up time for new components and maintain steady production throughput.

For a production-ready recommendation based on the FX105 grade and intended applications, contact Metav Werkzeuge for tailored technical guidance or to place an order: info@metav-werkzeuge.com | +49 2822 7131930

Technical data

• Article number: 6801921-Tungaloy
• Manufacturer SKU: TUN6801921
• Manufacturer article number: 6801921
• Model series: ISO-Drehwendeschneidplatten
• Material: Carbide
• Grade: FX105

Core numerical data

• Insert designation: CNMA120412
• ISO code: 120412
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 1.2 mm
• Clearance angle: 0°
• Included angle: 80°

Designs and special features

• Shape: Rhombic
• Hole: With cylindrical hole
• Chipbreaker: None
• Typical application: Turning (external and internal)
• Compatibility notes: Fit determined by form, clearance angle, tolerance, clamping, size and thickness

FAQ

What materials can this insert machine effectively?
The CNMA120412 FX105 Tungaloy insert, manufactured in a carbide grade, is intended for a broad range of turning applications; its FX105 grade offers a balance of wear resistance and toughness suitable for many steels and general engineering materials.

Is the insert compatible with standard ISO holders?
Yes. The design follows ISO indexing standards and compatibility depends on matching the holder by form, clearance angle, tolerance class, clamping system, size and thickness.

Does this insert include a chipbreaker for reliable chip control?
This particular indexable plate is supplied without a chipbreaker; chip control must be selected separately according to the workpiece material and the intended machining strategy.

How does the 1.2 mm corner radius affect machining?
The 1.2 mm corner radius increases edge strength and tolerance to interrupted cuts, improving robustness for medium-duty turning operations while influencing achievable surface finish and minimum feed.

Which components are required to form a complete cutting system?
A complete system typically comprises the ISO indexable insert, a matching outer holder or boring bar, a shim/clamp set and spare screws; correct matching ensures repeatable positioning and secure clamping.

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.