CNMG 120408 T515 Wendeplatten - Tungaloy

Combine efficient cast-iron machining with robust edge life and straightforward holder compatibility: the CVD-coated T515 grade ensures productive turning cycles while the rhombic 80° geometry and cylindrical hole simplify clamping and positioning — order genuine Tungaloy inserts or consult Metav Werkzeuge for application-specific guidance.

CNMG 120408 T515 indexable turning insert by Tungaloy — CVD-coated carbide, 80° rhombic

The CNMG120408 T515 indexable insert is designed for economical and stable machining of cast iron in external and internal turning, compatible with standard ISO holders.

• CVD-coated carbide grade T515
• Optimised for cast-iron machining
• Double-sided chipbreaker for flexible use
• ISO CNMG 120408, rhombic 80° geometry

Productive machining for cast iron with stable edge life

The CVD-coated T515 carbide grade offers a balance of wear resistance and economical performance for repetitive cast-iron operations. The chemical vapour deposition layer improves thermal and abrasive wear resistance, which translates into longer tool life and fewer insert changes during production runs. This results in lower unit machining costs and more predictable process windows for batch and series turning.

Precise fit and predictable clamp behaviour in ISO systems

The rhombic 80° geometry and cylindrical locating hole ensure secure seating in compatible holders; compatibility is governed by form, clearance angle, tolerance class, clamping method, size and thickness. The insert’s thickness of 4.76 mm and nominal size 12 provide mechanical stiffness, while the 0° rake and 0.8 mm nose radius support controlled chip formation. These features make the insert reliable in set-ups where repeatability and positional accuracy are required.

Controlled chipbreaking and versatile turning applications

Equipped with a double-sided chipbreaker, the insert supports both continuous and interrupted cuts in external and internal turning. For cast iron, the chip geometry and the CVD coating combine to improve chip control and surface finish, reducing the need for secondary operations. Selecting the appropriate chipbreaker and grade according to workpiece stability and cutting conditions delivers measurable productivity gains and reduced cycle times.

System recommendations and application guidance

As part of an ISO insert system, the plate works with a suitable external holder or boring bar, an underlay/clamping kit and replacement screws. Choice of holder stiffness and clamping torque is decisive for performance in interrupted cuts or unstable set-ups. If uncertain about matching the plate to a holder or the ideal cutting data for a specific casting grade, technical consultation can help select the right chipbreaker and optimise cutting parameters for consistent results.

For reliable cast-iron turning with Tungaloy’s proven CVD-coated T515 grade, contact Metav Werkzeuge for application advice or to order genuine Tungaloy indexable inserts.

Technical Data

• Article number: 6750480
• Manufacturer SKU: TUN6750480
• SKU: 6750480-Tungaloy
• Model series: ISO-Drehwendeschneidplatten

Facts

• ISO designation: CNMG120408
• Size: 12
• Thickness: 4.76 mm
• Nose radius: 0.8 mm
• Geometry angle: 80°
• Clearance (rake) angle: 0°
• Hole: with hole (cylindrical)
• Chipbreaker: double-sided

Special features

• Material: carbide
• Coating: CVD
• Grade: T515
• Plate shape: rhombic
• Application: turning (external and internal)
• System components: insert, holder compatibility, underlay/clamping set, replacement screws

FAQ

Is this insert suitable for interrupted cuts in cast-iron components?
The CVD-coated T515 grade and the insert’s mechanical thickness provide robustness for interrupted cuts; select a stiff holder and the appropriate chipbreaker for best results.

How many usable cutting edges does the insert provide?
The rhombic CNMG geometry is double-sided with a chipbreaker on both faces, offering multiple indexable edges before replacement is necessary.

Can the insert be used for non-ferrous materials such as aluminium or copper?
The insert is optimised for cast iron; other materials may require different chip control and coating properties for optimal performance.

What determines whether this insert fits a specific holder?
Compatibility depends on insert form, clearance angle, tolerance class, clamping method, size and thickness; confirm the holder matches the ISO CNMG120408 profile.

Is the coating suitable for high cutting speeds?
The CVD layer on the T515 grade enhances thermal resistance; appropriate cutting parameters should be chosen based on workpiece stability and toolholder rigidity.

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.