CNMG 120412 T9235 Wendeplatten - Tungaloy

Take advantage of the combination of ISO compatibility, a tough CVD-coated carbide grade and robust rhombic geometry for reliable turning under unstable conditions; order directly via Metav Werkzeuge or ask their consultants for mounting and grade selection.

CNMG 120412 T9235 indexable turning insert — rhombic 80° geometry, CVD-coated carbide by Tungaloy

The CNMG120412 T9235 is an ISO-standard indexable insert for turning, designed for external and internal turning of steel where interrupted cuts or less-stable setups demand a tough, wear-resistant grade.

• ISO-standard indexable insert
• CVD-coated carbide grade T9235
• Rhombic 80° geometry, 1.2 mm nose radius
• Double-sided chipbreaker, cylindrical hole

Consistent performance when machining steel and interrupted cuts

The CVD-coated carbide grade T9235 is formulated as a tough cutting grade that performs well at lower cutting speeds and in unstable conditions, making it suitable for interrupted cuts and less rigid set-ups. The combination of a robust substrate and a chemical vapour deposition layer improves resistance to chipping and flank wear, which extends tool life and reduces unexpected stoppages. As a consequence, this insert supports a steady production flow and more predictable tooling costs per component.

Secure clamping and ISO-based compatibility for flexible use

The insert follows ISO dimensions, so compatibility with holders is determined by form, relief angle, tolerance class, fastening, size and thickness. The rhombic 80° geometry and cylindrical hole allow positive mechanical location and straightforward fastening in matching toolholders or boring bars. The double-sided design provides two usable cutting edges, improving economic efficiency. Selecting a matching holder and the correct tolerance class ensures repeatable positioning and consistent cutting conditions across batches.

Simple technical advantages that translate to operational benefits

Key dimensional features such as the 1.2 mm nose radius, 4.76 mm plate thickness and a 0° clearance angle help balance edge strength and achievable surface finish when paired with the appropriate feeds and speeds. The double-sided chipbreaker assists in chip control for many common steels, reducing the risk of chip entanglement and helping to maintain stable cutting forces. For shops seeking predictable performance, the clear ISO specification and established grade behaviour simplify process planning and reduce trial-and-error on the shopfloor.

Contact Metav Werkzeuge for application advice and stock availability of Tungaloy CNMG 120412 T9235 inserts — info@metav-werkzeuge.com | +49 2822 7131930

Technical data

• Article number: 6785812
• Manufacturer SKU: TUN6785812
• Brand: Tungaloy
• Model series: ISO indexable turning inserts
• Name: CNMG120412 T9235 Tungaloy indexable insert

Core specifications

• Insert size: 12
• Plate thickness: 4.76 mm
• Nose radius: 1.2 mm
• Relief angle: 0°
• Included angle: 80°
• Hole: with hole
• Hole style: cylindrical hole
• Plate form: rhombic
• Chipbreaker: double-sided

Materials and special features

• Material: carbide (cemented carbide)
• Grade/coating: T9235, CVD-coated carbide
• Application: turning (external and internal), suitable for steel
• Typical system: ISO insert, matching external holder or boring bar, shim/clamping kit and spare screw
• Notes on compatibility: determined by form, relief angle, tolerance class, fastening, size and thickness

FAQ

What steels is this grade suitable for?
The CNMG120412 T9235 insert is a tough CVD-coated carbide grade intended primarily for machining steel, especially when operations involve interrupted cuts or variable rigidity.

How many cutting edges are available per insert?
Due to its double-sided design, the insert provides two usable cutting edges; reversing the insert restores a fresh edge and improves cost efficiency.

How does the cylindrical hole affect mounting stability?
The cylindrical hole supports secure clamping and precise positioning in compatible ISO toolholders, improving repeatability and reducing the risk of rotation under load.

Can this insert be used for finishing passes?
With the 1.2 mm nose radius and appropriate cutting parameters, the insert can achieve acceptable surface finishes, though optimal finishing may require a smaller radius or a grade prioritising fine-edge life.

What should be considered when selecting a holder for this insert?
Select a holder matching the ISO designation and tolerance class; check form, relief angle, fastening method, size and thickness to ensure correct seating and reliable cutting geometry.

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.