CNMG 120404 T5105 Wendeplatten - Tungaloy

Benefit from the T5105 CVD‑coated cemented carbide and ISO CNMG geometry for dependable high‑speed turning of cast iron; the rhombic 80° form and secure hole clamping support consistent process stability. Order genuine inserts via Metav Werkzeuge or consult the team for application advice.

CNMG 120404 T5105 indexable insert for turning by Tungaloy — CVD‑coated carbide, rhombic 80°

CNMG 120404 T5105 is an indexable turning insert designed for high‑speed machining of cast iron under stable conditions, offering a wear‑resistant CVD coating and proven geometry for reliable cycle times

• ISO CNMG 120404 geometry
• CVD‑coated T5105 carbide grade
• Double‑sided chipbreaker for versatility
• Rhombic 80° shape with cylindrical hole

Consistent high‑speed performance for cast iron turning

The insert combines a CVD‑coated cemented carbide substrate with the T5105 grade to provide enhanced abrasion resistance during high‑speed turning of cast iron. The coating reduces flank wear and maintains cutting edge integrity for longer intervals between index changes, which translates into more predictable tool life and fewer unplanned interruptions. By favouring a wear‑resistant grade in stable clamping and machining conditions, production runs achieve improved surface consistency and a reduction in finishing passes.

Precise geometry and secure clamping reduce vibration

The ISO CNMG 120404 geometry, with a rhombic 80° shape and a cylindrical hole, is designed to deliver stable engagement and reliable seat location in appropriate external holders or boring bars. The 4.76 mm plate thickness and 0° clearance angle support robust cutting forces while the 0.4 mm corner radius smooths transitions on profiles. A cylindrical hole helps centre the insert and improves repeatability during index changes, lowering the risk of micro‑vibrations that impair surface finish and dimensional accuracy.

Chip control and reversible edge for cost‑effective production

A double‑sided chipbreaker provides two usable cutting edges per side, allowing reversible use to maximise economy. The chipbreaker geometry aids controlled chip formation when turning cast iron, reducing the frequency of manual chip clearing and improving coolant access. Reversible inserts cut tooling expenditure per component and simplify inventory management, while consistent chip control contributes to safer, more efficient automated machining.

Practical selection advice and easy integration into existing systems

Select the chipbreaker and grade according to the workpiece material, machining strategy and machine stability; the T5105 grade is optimised for cast iron under stable conditions and high cutting speeds. The insert integrates into standard ISO turning systems—install the insert with the matching shim, clamp set and screws to ensure correct seating. For operations requiring different materials or interrupted cuts, consider alternative grades or chipbreaker designs to maintain process reliability and surface quality.

Contact Metav Werkzeuge for tailored application advice and to secure genuine Tungaloy CNMG 120404 T5105 turning inserts; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6850120
• Manufacturer SKU: TUN6850120
• SKU: 6850120-Tungaloy
• Model series: ISO turning indexable inserts

Facts

• Insert designation: CNMG120404
• Insert size: 12 mm
• Plate thickness: 4.76 mm
• Corner radius: 0.4 mm
• Geometry angle: 80°
• Clearance angle: 0°
• Hole: with hole, cylindrical hole

Special features

• Material: CVD‑coated cemented carbide T5105
• Double‑sided chipbreaker
• Rhombic 80° shape
• Reversible cutting edges
• Suitable for high‑speed cast iron turning
• Compatible with ISO external holders and boring bars

FAQ

What materials is this insert optimised for?
The CNMG 120404 T5105 insert is optimised for high‑speed machining of cast iron; the T5105 CVD‑coated cemented carbide provides abrasion resistance suited to that material class.

Is the insert reversible and how many cutting edges are available?
Yes — the insert features a double‑sided chipbreaker, giving multiple reversible cutting edges per insert to improve economy and reduce tooling changes.

How does the cylindrical hole affect clamping and repeatability?
A cylindrical hole improves centring and clamping stability in compatible holders, which enhances repeatability and reduces the likelihood of micro‑vibration during turning operations.

Can this insert be used for interrupted cuts or unstable set‑ups?
The CNMG 120404 T5105 is designed for stable conditions; for heavily interrupted cuts or less rigid setups a different grade or chipbreaker geometry may be more appropriate.

Which holders are compatible with this ISO geometry?
Compatibility is determined by the insert form, clearance angle, tolerance class, attachment method, size and thickness; matching holders and shims designed for ISO CNMG geometry should be used.

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.