CNMG 120408 T5115 Wendeplatten - Tungaloy

The combination of CVD-coated carbide and an 80° rhombic geometry delivers stable cutting and reliable chip control for turning cast iron; take advantage of improved productivity and consistent tool life. Order the insert directly via Metav Werkzeuge or consult our application specialists for tailored recommendations.

CNMG120408 T5115 CNMG ISO turning insert for turning, CVD-coated carbide – Tungaloy

CNMG120408 T5115 is an ISO-format indexable insert designed for productive external and internal turning, optimised for cast-iron applications.

• Robust CVD-coated carbide grade T5115
• Optimised chip control with double-sided breaker
• 80° rhombic geometry for versatile turning
• Cylindrical hole for secure clamping

Predictable cutting performance for cast-iron turning

The CVD-coated carbide T5115 grade provides a well-balanced combination of wear resistance and edge stability, which translates into predictable performance when machining grey cast iron. The rhombic 80° geometry reduces vibration and supports stable cutting under varied depth-of-cut conditions, improving surface finish and reducing rework. For practical selection, compatibility with the holder depends on form, clearance angle, tolerance class, attachment method, size and thickness, ensuring the right pairing of insert and toolholder for consistent cycle times and reduced tool-change frequency.

Practical compatibility and setup advantages in the workshop

The indexable insert format and the presence of a cylindrical hole enable secure clamping and straightforward positioning in standard CNMG toolholders. The double-sided chipbreaker gives access to an additional cutting edge after indexing, which extends usable life per insert and reduces tooling costs. Because the insert conforms to ISO standards, integration into existing tool systems is uncomplicated: check holder geometry against the insert’s 12 mm size, 4.76 mm thickness and 0.8 mm corner radius to ensure optimal clamping and repeatability, thereby lowering setup time and minimising downtime during production runs.

Coating and edge stability that extend productive runs

A CVD coating on a carbide substrate increases resistance to abrasive wear and helps maintain a sharp edge under intermittent cutting loads typical of cast-iron turning. That combination supports longer uninterrupted cutting sequences and stable machining quality, which in turn improves process reliability. For operations seeking a balance between longevity and edge robustness, this grade reduces the frequency of insert changes and supports predictable tool-life planning, contributing to lower cost per component and steadier throughput.

For application advice, availability checks or to request sample quantities of Tungaloy CVD-coated CNMG inserts, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 – our technical team will advise on holder compatibility and best-practice cutting data

Technical data

• Article number: 6850132
• Manufacturer SKU: TUN6850132
• SKU: 6850132-Tungaloy
• Model series: ISO turning inserts
• Name: CNMG120408 T5115 Tungaloy-insert
• Manufacturer: Tungaloy

Dimensions / Core data

• Insert size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Geometry angle: 80°
• Clearance angle: 0°
• Hole: with cylindrical hole

Materials / Special features

• Material: CVD-coated carbide (T5115)
• Application: turning (external and internal)
• Shape: rhombic (CNMG)
• Chipbreaker: double-sided
• Compatibility determined by form, clearance angle, tolerance, attachment, size and thickness

FAQ

Which materials is this insert best suited to machine?
The T5115 grade is a universal choice for machining cast iron; the CNMG120408 T5115 insert balances wear resistance and edge stability specifically for grey cast-iron applications.

How is compatibility with a toolholder confirmed?
Compatibility is verified by matching the insert form (CNMG), the ISO size 120408, clearance angle (0°), thickness (4.76 mm) and the presence of the cylindrical hole with the holder's clamping system and tolerance class.

Is the insert indexable and does it provide multiple cutting edges?
The insert is double-sided with a chipbreaker on both faces; it can be indexed to present a fresh cutting edge, extending the effective life per insert.

What benefits does the CVD coating provide during turning?
A CVD coating improves abrasive wear resistance and maintains edge integrity under typical cast-iron cutting conditions, which supports longer runs and more consistent surface quality.

Can this insert be used for internal turning operations?
Yes, the ISO CNMG format and the rhombic 80° geometry make the insert suitable for both external and internal turning applications when the holder geometry permits.

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.