CNMG 120412 T9235 Wendeplatten - Tungaloy

Take advantage of the CVD-coated T9235 grade and the robust CNMG geometry to improve uptime and reduce insert changes in heavy or interrupted turning. The combination of a 1.2 mm corner radius, 80° rhombic form and a double-sided chipbreaker offers a practical balance of edge strength and chip control; order directly via Metav Werkzeuge or ask our consultants for application advice.

CNMG 120412 T9235 – ISO turning insert, CVD-coated carbide by Tungaloy

The CNMG120412 T9235 is an ISO-compliant turning insert designed for external and internal turning where interrupted cuts or unstable conditions demand a tough, wear-resistant grade.

• CVD-coated carbide for tough conditions
• ISO CNMG 120412 rhombic form, 80° included angle
• 1.2 mm corner radius for robust cutting edge
• Double-sided chipbreaker, cylindrical hole

Proven wear resistance for longer tool life and fewer tool changes

The T9235 grade is a CVD-coated carbide designed to withstand lower cutting speeds and unstable machining conditions, delivering consistent edge stability when the load is variable. Because the coating provides a hard, wear-resistant surface and the substrate combines toughness with thermal stability, the insert sustains its cutting geometry for longer, which reduces the frequency of indexings and replacements. This translates into higher machine availability and lower handling time per workpiece, giving a measurable advantage on jobs with interrupted cuts or less rigid set-ups.

Straightforward integration into ISO tool systems saves set-up time

The rhombic CNMG geometry with an 80° included angle, 0° clearance, and a cylindrical hole ensures compatibility with a wide range of ISO holders and boring bars. The plate thickness of 4.76 mm and the standard plate size make it simple to select a matching external holder or toolpost-mounted bar. System assembly typically includes the appropriate holder, an underlay/clamping kit and replacement screws; these components determine the final seat, orientation and tolerance. Clear documentation of form, clearance angle and tolerance class helps ensure reliable clamping and repeatable indexing operations.

Practical choice for steel machining under interrupted or unstable conditions

This insert is optimised for machining steel where toughness and chipping resistance are priorities. The double-sided chipbreaker assists in maintaining predictable chip formation across varying depths of cut, while the 1.2 mm corner radius provides a robust edge that tolerates shock at the cut entry. Since the grade performs best at moderate to lower cutting speeds, it is particularly suitable for repair work, medium-duty roughing and applications with frequent interruptions. Selecting the correct chipbreaker and grade according to workpiece material and stability will improve surface finish and process reliability.

Contact Metav Werkzeuge today for tailored advice on integrating the Tungaloy CNMG 120412 T9235 insert into existing tool systems and to secure original replacement inserts directly from stock

Technical data

• Article number: 6785816

• Manufacturer SKU: TUN6785816

• SKU: 6785816-Tungaloy

• Model series: ISO-Drehwendeschneidplatten

• Designation: CNMG120412

• Manufacturer: Tungaloy

Facts

• Corner radius: 1.2 mm

• Included angle: 80°

• Clearance angle: 0°

• Plate thickness: 4.76 mm

• Plate size: 12

Special features

• Material: carbide

• Coating/sort: T9235 (CVD-coated)

• Plate shape: rhombic

• Hole: cylindrical, with hole

• Chipbreaker: double-sided

• Typical application: external and internal turning

FAQ

What materials is the CNMG120412 T9235 suitable for? The CNMG120412 T9235 insert is optimised for machining steel; the CVD-coated carbide grade is chosen for toughness and resistance during interrupted or unstable cuts.

Will this insert fit standard CNMG holders? Yes, the insert follows ISO CNMG geometry; compatibility is determined by form, clearance angle, tolerance class, mounting and plate thickness, so matching the holder to these parameters is essential.

When should the T9235 grade be selected over harder grades? Choose the T9235 grade for lower cutting speeds, jobs with interrupted cuts or less rigid set-ups where edge toughness and chipping resistance are more important than maximum wear resistance.

How is the insert mounted and secured? The insert uses a cylindrical hole and is secured in a suitable external holder or boring bar; a correct underlay/clamping set and replacement screws complete the system for repeatable seating.

Is this a single- or double-sided insert and what are the implications? This is a double-sided insert with a chipbreaker on both faces; the design allows indexing to a fresh cutting edge and improves cost-efficiency per edge.

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.