CNMG 120412 T9205 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated carbide durability, the proven T9205 grade for productive steel turning, and ISO compatibility for straightforward holder matching; order directly via Metav Werkzeuge or contact our consultants for application advice.

CNMG 120412 T9205 turning insert — CVD-coated carbide, 80° rhombic by Tungaloy

A CNMG 120412 T9205 ISO turning insert designed for productive external and internal turning of steel under stable machining conditions

• CVD-coated carbide for durable edge
• ISO-standard geometry for broad compatibility
• 80° rhombic shape for versatile turning
• Double-sided insert with cylindrical hole

Boosted productivity with a wear-resistant grade

The T9205 grade is a CVD-coated carbide developed for productive turning of stainless and common steels at higher cutting speeds under stable conditions. The chemical vapour deposition coating increases surface hardness and reduces abrasive wear, which translates into longer tool life and fewer indexings. For production environments this means higher uptime and a more predictable tool-cost-per-part, helping to keep cycle times and operating costs under control.

Secure clamping and consistent geometry for repeatable results

The ISO-format geometry ensures the insert fits standard holders when form, clearance angle, tolerance class, fastening type, size and thickness match. The rhombic 80° shape provides a balance between radial strength and access for shoulder and profile turning, while the cylindrical hole and 0° clearance offer positive, repeatable clamping. These design choices reduce vibration and support a consistent cutting edge position, improving dimensional accuracy and surface finish on turned components.

Robust edge and cutting stability from design details

A corner radius of 1.2 mm and an insert thickness of 4.76 mm contribute to a stable cutting edge able to withstand moderate interruptions and heavier feed rates. The double-sided, chipbreaking design extends usable life per index and lowers inventory turnover. Where process stability is present, the combination of corner radius and CVD coating allows higher cutting speeds without premature flank wear, benefitting throughput and part quality in batch production.

Practical selection and application guidance for workshop use

This ISO insert is intended primarily for turning (external and internal) of steel; select a chipbreaker and grade that suit material, operation and machine rigidity. The insert’s CNMG 120412 geometry and T9205 properties are suited to medium to heavy machining where tool-life and edge reliability matter. For shops seeking predictable performance, pairing this insert with a compatible external holder and correct clamping torque will maximise the benefits of the CVD-coated carbide substrate.

For application recommendations and prompt procurement of Tungaloy CNMG 120412 T9205 inserts contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for tailored advice and fast delivery

Technical data

• Article number: 6785786
• Manufacturer SKU: TUN6785786
• Model series: ISO turning inserts
• Manufacturer: Tungaloy

Core specifications

• Geometry: CNMG 120412
• Corner radius: 1.2 mm
• Insert size: 12 mm
• Thickness: 4.76 mm
• Clearance angle: 0°
• Hole: cylindrical

Materials & features

• Material: carbide
• Coating: CVD
• Grade: T9205
• Shape: rhombic, 80°
• Double-sided with chipbreaker
• Application: turning (external and internal)

FAQ

What materials is this insert suitable for?
The Tungaloy CNMG 120412 T9205 insert is formulated for machining steel and related alloys; the T9205 CVD-coated carbide performs best under stable cutting conditions and higher cutting speeds.

How does the coating benefit production work?
The CVD coating on the T9205 grade enhances wear resistance and edge life, reducing the frequency of index changes and contributing to lower overall tooling costs in serial turning operations.

What does CNMG 120412 indicate?
CNMG 120412 denotes the ISO insert geometry: a rhombic 80° shape, size 12, and a corner radius of 1.2 mm, which together define the insert’s fit and cutting behaviour in compatible holders.

Is this insert reversible or single-use per side?
The insert is double-sided, offering two effective cutting edges per side; correct indexing and clamping ensure safe reuse of the reverse edge to extend service life.

Which holders are compatible with this insert?
Compatibility depends on form, clearance angle, tolerance class, fastening and size; the ISO-standard CNMG geometry facilitates selection of suitable external holders or boring bars designed for 80° rhombic inserts.

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.