CNMG 120408 T9235 Wendeplatten - Tungaloy

Take advantage of the combination of robust CVD‑coated cemented carbide T9235, ISO CNMG geometry and an 80° rhombic profile to improve stability in interrupted cuts and unstable turning conditions; order directly via Metav Werkzeuge or consult our technical advisors for selection and holder compatibility.

CNMG 120408 T9235 – Turning insert (ISO) by Tungaloy

The CNMG 120408 T9235 is an ISO‑standard indexable turning insert for external and internal turning, designed with a rhombic 80° geometry and a tough CVD‑coated carbide grade for interrupted cuts.

• CVD‑coated carbide T9235 for tough steels
• ISO CNMG 120408 geometry, 80° rhombic
• 0.8 mm corner radius for consistent edge life
• Double‑sided chipbreaker with cylindrical hole

Stable performance where interrupted cuts occur

The CVD‑coated cemented carbide grade T9235 is formulated for reliable machining of steels at moderate cutting speeds and under unstable conditions. Thanks to the ISO CNMG 120408 geometry and the 80° rhombic shape, the insert provides a favourable cutting angle for both external and internal turning operations, reducing the risk of edge chipping during interrupted cuts. Compatibility with holders is defined by form, 0° clearance angle, tolerance class, fastening and thickness, so the insert integrates into standard turning tool systems with predictable behaviour.

Controlled chip formation and extended tool life

With a double‑sided chipbreaker and a 0.8 mm corner radius, the design focuses on chip control and repeatable wear performance. The CVD coating enhances resistance to adhesion and crater wear while the cemented carbide substrate maintains toughness where interrupted or unstable cutting occurs. The insert’s dimensions — inscribed circle 12 mm and plate thickness 4.76 mm — offer a rigid cutting edge when paired with a suitable external holder or boring bar, resulting in fewer indexings and improved productivity over comparable grades in roughing and mixed finishing applications.

Practical system guidance for reliable integration

The cutting system comprises the ISO indexable insert, matching external holder or boring bar, shim/clamp set and replacement screws. The insert is supplied with a cylindrical hole, enabling secure clamping and easy mounting. Select the appropriate chipbreaker and grade according to workpiece material, machining stability and desired surface finish; material compatibility and insert choice will determine cycle times and overall process economy. For complex setups or special workpiece materials, Metav Werkzeuge’s technical team can advise on holder selection and process parameters.

Contact Metav Werkzeuge today for expert guidance on Tungaloy CNMG 120408 T9235 inserts and to secure the correct holder and clamping components — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6785979-Tungaloy
• Manufacturer SKU: TUN6785979
• Manufacturer article number: 6785979
• Material: cemented carbide
• Coating / grade: T9235 (CVD‑coated)

Facts

• Geometry: CNMG 120408
• Inscribed circle: 12 mm
• Plate thickness: 4.76 mm
• Corner radius: 0.8 mm
• Relief / clearance angle: 0°
• Shape angle: 80°

Special features

• Rhombic insert, ISO‑standard
• Double‑sided chipbreaker
• With cylindrical hole for secure clamping
• Designed for external and internal turning
• Suited to interrupted cuts and unstable machining conditions

FAQ

What materials is this insert intended for?
The CNMG 120408 T9235 insert is specified for the machining of steels; the T9235 grade is a tough, CVD‑coated cemented carbide designed to cope with interrupted cuts and less stable cutting conditions.

How does the CNMG 120408 geometry affect cutting performance?
The CNMG 120408 geometry provides an 80° rhombic cutting edge that favours robust engagement during turning and improves edge strength in external and internal operations.

Is the insert reversible or indexable?
The insert is double‑sided with a chipbreaker on both faces, enabling indexing to a fresh cutting edge and extending usable tool life for the CNMG 120408 T9235.

Which holder features are required for correct compatibility?
Compatibility is determined by the holder form, clearance angle, tolerance class, fastening style, size and plate thickness; use a holder or boring bar matching CNMG ISO dimensions and the 0° clearance specification.

What benefits does the CVD coating provide on this grade?
The CVD coating on the T9235 grade improves resistance to adhesion and crater wear while maintaining substrate toughness, resulting in more consistent tool life and surface finish in difficult turning conditions.

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.