CNMG 120404 T505 Wendeplatten - Tungaloy

The combination of CVD-coated carbide, a double-sided chipbreaker and ISO‑compatibility ensures efficient, economical turning of cast iron with predictable tool life; order supply or request advice via Metav Werkzeuge for seamless integration into existing tool systems.

CNMG120404 T505 – ISO turning insert (CVD-coated carbide) by Tungaloy

The CNMG120404 T505 is an ISO‑standard indexable turning insert optimised for economical machining of cast iron in external and internal turning operations.

• CVD-coated carbide grade T505
• Optimised for cast iron machining
• Double-sided chipbreaker for stability
• ISO CNMG 120404 rhombic insert

Consistent, economical cutting for cast iron

The CVD‑coated carbide grade T505 delivers a balanced combination of wear resistance and toughness, making it well suited to the economic machining of cast iron. The coating reduces flank wear under continuous cutting conditions, while the substrate provides the necessary edge stability for operations with moderate to variable cutting parameters. For workshops seeking repeatable component quality and reduced regrind cycles, this specification supports longer intervals between insert changes and contributes to lower overall machining costs.

Precise geometry for reliable holder compatibility

The insert follows the ISO CNMG 120404 geometry and is produced in a rhomboid form with a 0.4 mm corner radius and a 4.76 mm thickness, including a cylindrical hole for secure mounting. Compatibility with a turning holder depends on form, relief angle, tolerance class, fastening and size; matching these factors ensures correct seating, consistent chip evacuation and stable cutting forces. The nominal relief angle of 0° and an included angle of 80° make the insert appropriate for a broad range of standard CNMG holders.

Stable chip control and flexible tool economy

A double-sided chipbreaker design provides two usable orientations before indexing, effectively doubling the functional edges compared with a single‑sided layout and improving cost efficiency. The chipbreaker geometry assists in fragmenting chips when machining interrupted cuts or variable sections typical of cast components, reducing the risk of surface damage and enhancing process reliability. For production environments that value predictable cycle times and simple tool logistics, this insert supports both roughing and medium finishing passes when paired with an appropriate grade and cutting data.

Application guidance and system composition

The insert is intended for turning (external and internal) as part of a complete system comprising the ISO insert, a compatible external holder or boring bar, and the necessary clamping hardware and screws. Selecting the correct chipbreaker and grade—here T505—should be guided by component stability, the presence of interrupted cuts and the desired cutting speed. When set up correctly, the combination of ISO standardisation, robust clamping and the coated carbide substrate delivers consistent surface quality and repeatable results.

For supply, technical matching or to discuss the CNMG120404 T505 application in existing tool systems, please contact Metav Werkzeuge GmbH at info@metav-werkzeuge.com or by phone on +49 2822 7131930 for tailored advice and fast delivery.

Technical data

• Article number: 6831233
• Manufacturer SKU: TUN6831233
• Model series: ISO‑turning indexable inserts
• Material: carbide

Facts

• Insert designation: CNMG120404
• Grade / coating: T505 (CVD‑coated)
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.4 mm
• Relief angle: 0°
• Included angle: 80°

Special features

• Rhomboid (CNMG) insert shape
• Cylindrical hole for fastening
• Double‑sided chipbreaker
• ISO‑standard geometry for holder compatibility
• Suited for cast iron machining
• Intended for external and internal turning

FAQ

Which materials is this insert designed for?
The CNMG120404 T505 insert is specified for economical machining of cast iron; the T505 CVD‑coated carbide supports stable cutting and wear resistance in these materials.

Is this insert compatible with standard CNMG holders?
Compatibility requires matching form, relief angle, tolerance class, fastening, size and thickness; the CNMG120404 designation and the 4.76 mm thickness align with standard CNMG holder requirements when these parameters are observed.

How does the double‑sided chipbreaker affect tool economy?
The double‑sided chipbreaker allows indexing to a fresh orientation, effectively extending useful life per insert and improving cost efficiency compared with single‑sided variants.

What cutting applications suit the 0.4 mm corner radius?
A 0.4 mm radius offers a compromise between edge strength and surface finish, making it suitable for general turning where moderate finishing and robust edge performance are required.

Can the insert be used for interrupted cuts?
The coated substrate and chipbreaker design of the CNMG120404 T505 help manage interrupted cutting conditions; selection should consider component stability and cutting parameters.

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.