CNMG 120408 T9235 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated T9235 grade, robust carbide construction and a 0.8 mm corner radius for reliable performance in unstable turning conditions; order the insert directly via Metav Werkzeuge or consult the team for application advice.

CNMG120408 T9235 Tungaloy — ISO rhombic turning insert with 0° relief

A CNMG120408 T9235 turning insert designed for external and internal turning, providing a tough CVD-coated carbide grade for interrupted cuts and variable stability conditions.

• ISO rhombic shape, 12 mm size
• CVD-coated T9235 grade for tough steels
• Double-sided geometry for economical indexing

Precise performance where interrupted cuts and instability occur

The rhombic ISO insert is manufactured from carbide and finished with a CVD coating in the T9235 grade, delivering a balance of toughness and wear resistance that favours operations at lower cutting speeds. The 0.8 mm corner radius supports stronger edge integrity, reducing the risk of chipping in interrupted cutting or when machine rigidity is limited. As a result, cycle stability is improved and the process remains predictable even under variable cutting conditions; this makes the component suitable for shops prioritising repeatable, safe turning operations.

Economic indexability and system compatibility

Thanks to its double-sided design and standard ISO form, the insert offers efficient use of each cutting edge and straightforward compatibility within ISO-standard toolholder systems. Compatibility depends on holder geometry, clearance angle, tolerance class, fastening method, size and thickness; matching these parameters ensures secure clamping and correct cutting angles during operation. The insert's 4.76 mm thickness and central cylindrical hole permit reliable fastening and simple replacement procedures, supporting short changeover times and a high parts-per-edge ratio.

Application guidance and material suitability

The T9235 grade is formulated for steel machining under less favourable conditions — such as interrupted cuts or reduced machine stiffness — where a tough substrate is preferable to a pure wear-focused grade. The insert is intended for turning tasks including external profiling and internal operations; selecting the appropriate chipbreaker and grade combination will influence surface finish and tool life. Where finer surface quality is required, pairing the insert with stable fixturing and optimised speeds will help harness the grade's advantages while maintaining productivity.

For technical selection tailored to the application—especially when machining steel with interrupted cuts—contact Metav Werkzeuge for personalised advice; eMail: info@metav-werkzeuge.com or call +49 2822 7131930 to discuss tooling and holder matching.

Technical Data

• Article number: 6785914
• Manufacturer SKU: TUN6785914
• Vendor SKU: 6785914-Tungaloy
• ISO designation: CNMG120408

Facts

• Size: 12
• Thickness: 4.76 mm
• Relief angle: 0°
• Included hole: cylindrical
• Corner radius: 0.8 mm
• Angle: 80°

Special features

• Material: carbide
• Coating: CVD (T9235)
• Geometry: rhombic, double-sided
• Typical application: turning (external and internal)
• System components: ISO insert, matching outer holder or boring bar, shim/clamp set and replacement screws

FAQ

What materials is this insert suitable for?
The CNMG120408 T9235 Tungaloy insert is optimised for machining steel, with the T9235 grade tailored to tougher conditions and interrupted cuts.

How does the T9235 coating affect performance?
The CVD-coated T9235 grade improves edge toughness and wear resistance, helping the insert maintain integrity during unstable cuts and reducing premature chipping.

Is the insert indexable and economical to use?
Yes; the rhombic, double-sided design allows multiple edge indexes, increasing edge utilisation and cost efficiency for series production.

Which holders are compatible with this ISO insert?
Compatibility requires matching the holder's form, relief angle, tolerance class, fastening method, size and thickness to the ISO insert dimensions; ensure the holder supports a 12 mm ISO CNMG form.

Can the insert be used for internal boring?
The insert is suitable for both external and internal turning operations when fitted to an appropriate boring bar or holder that secures the 4.76 mm thick plate and central cylindrical hole.

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.