CNMG 120412 T9235 Wendeplatten - Tungaloy

Benefit from the combination of CVD-coated carbide, a 1.2 mm nose radius and ISO compatibility for reliable turning results under unstable cutting conditions. Order the insert through Metav Werkzeuge or consult their specialists for selection and application advice.

CNMG 120412 T9235 CNMG120412 Turning Insert by Tungaloy — CVD-coated carbide, 1.2 mm radius

A CNMG 120412 T9235 indexable turning insert designed for external and internal turning, offering a tough CVD-coated carbide grade for interrupted cuts and less stable machining conditions.

• CVD-coated carbide for improved wear resistance
• 1.2 mm nose radius for consistent profile control
• ISO CNMG form with cylindrical hole
• Suitable for unstable cuts and interrupted turning

Durable grade for interrupted and unstable turning

The insert is manufactured in a CVD-coated carbide grade T9235, specifically developed for turning steel at moderate cutting speeds and in situations with interrupted cuts or instability. The coating increases surface hardness and reduces adhesive wear, while the substrate delivers toughness to resist chipping. Together, these properties translate into extended tool life and fewer insert changes, which supports steady production and lower downtime in mixed‑batch machining.

Accurate profile control and surface consistency

With a 1.2 mm nose radius and an 80° rhombic form, the geometry provides reliable profile control for shoulder and finishing passes. The defined nose radius helps achieve consistent part geometry and a predictable surface finish without aggressive chatter when the machine setup is stable. The insert’s geometry, combined with the double-sided chipbreaker, assists chip control and helps maintain repeatable dimensional accuracy on turned components.

Straightforward integration with ISO toolholders

The component follows the ISO designation CNMG120412, ensuring compatibility with ISO‑standard external holders and boring bars when matched by form, relief angle, tolerance class, clamping method and size. The insert features a cylindrical hole for secure mounting and a plate thickness of 4.76 mm, allowing straightforward replacement in existing tool systems and simplifying inventory management across workshops that standardise on ISO indexable tooling.

Application guidance and machining benefits

Chosen for general turning tasks, the grade and chipbreaker combination is particularly effective for jobs where stability is variable or cutting is interrupted. The double-sided chipbreaker extends usable edges per insert, improving economy. For steel machining, the tougher grade reduces the risk of chipping during entry and exit. When higher cutting speeds and lower forces are possible, alternative grades may offer higher wear resistance, but this insert balances process reliability with predictable performance in demanding conditions.

Contact Metav Werkzeuge for tailored application advice on the Tungaloy CNMG 120412 T9235 insert and to secure the correct inserts for specific turning operations

Technical data

• Article number: 6785976
• SKU: 6785976-Tungaloy
• Manufacturer SKU: TUN6785976
• Brand: Tungaloy

Facts

• Nose radius: 1.2 mm
• Inscribed circle / size: 12 mm
• Plate thickness: 4.76 mm
• Angle: 80°
• Clearance angle: 0°

Special features

• ISO designation: CNMG120412
• Grade / coating: T9235 CVD-coated carbide
• Plate form: rhombic
• Hole: cylindrical hole
• Double-sided chipbreaker
• Application: turning (external and internal)
• Suitable for interrupted cuts and unstable conditions

FAQ

What machining tasks is this insert best suited for? The CNMG 120412 T9235 insert by Tungaloy is intended for external and internal turning of steel, especially where interrupted cuts or unstable conditions occur.

How does the T9235 grade affect tool life? Tungaloy’s T9235 grade combines a tough carbide substrate with a CVD coating to resist chipping and reduce adhesive wear, which typically results in longer usable life under the stated turning conditions.

Is the insert compatible with standard ISO holders? Yes. The ISO designation CNMG120412 indicates compatibility with ISO CNMG holders when matching form, relief angle, size and clamping system.

How many cutting edges are available per insert? The insert features a double-sided chipbreaker, providing multiple usable edges before replacement is necessary.

Can this insert be used for finishing passes? With its 1.2 mm nose radius and rhombic 80° form, the insert supports controlled profiling and can be used for finishing, bearing in mind the grade is optimised for toughness over maximum speed.

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.