CNMG 120408 T515 Wendeplatten - Tungaloy

The combination of a CVD-coated carbide grade and ISO-standard geometry delivers economical, repeatable machining and reliable chip control for cast-iron turning; compatibility with standard holders simplifies tool logistics. Order genuine inserts or consult Metav Werkzeuge for application guidance and availability.

CNMG 120408 T515 ISO turning insert for turning, Tungaloy — CVD-coated carbide, 80°

CNMG120408 T515 is an ISO-form turning insert designed for efficient external and internal turning of cast iron, featuring a rhombic shape and a cylindrical hole for secure clamping

• CVD-coated carbide grade T515
• ISO CNMG120408 rhombic insert
• Double-sided chipbreaker, cylindrical hole
• Optimal for cast iron turning

Consistent performance for cast iron turning

The combination of a CVD-coated surface and a wear-resistant carbide substrate in grade T515 ensures both economical cutting and stable wear behaviour when machining grey and nodular cast iron. The coating reduces flank wear and improves edge integrity, which means longer in-process life and fewer indexings. As an ISO-classified geometry, the insert matches a wide range of standard holders by form, clearance and size, facilitating quick replacement and predictable results in series production. This leads to improved uptime and a more consistent surface finish on turned components.

Secure seating and effective chip control for steady results

The rhombic insert form with an 80° cutting edge and a 0° relief angle, combined with a cylindrical hole, provides a repeatable mechanical fit and stable clamping in compatible toolholders. The double-sided chipbreaker design permits two usable cutting edges, which extends tool life per insert and reduces tooling costs. Stable clamping and effective chip control reduce vibration and the risk of built-up edge, resulting in improved dimensional accuracy and fewer rejected parts during external and internal turning operations.

Practical selection and application advice for machinists

Select the grade and chipbreaker according to component stability, interruption in the cut and target cutting speed: T515 is optimised for cast iron under varying stability conditions and supports moderate to high cutting speeds where economical performance is required. For interrupted cuts or unstable set-ups, favour increased rigidity and shorter overhangs; for higher productivity, increase feed and speed within the machine and workpiece limits while monitoring tool wear. Practical adjustment of parameters will yield a favourable cost-per-component ratio and a consistent surface finish across production batches. For system setup, match insert form, thickness (4.76 mm) and hole style to the holder’s specifications to ensure correct seating.

Contact Metav Werkzeuge for tailored application advice and to obtain genuine Tungaloy CNMG120408 T515 inserts directly from stock

Technical data

• Article number: 6747822
• Manufacturer SKU: TUN6747822
• Model series: ISO-Drehwendeschneidplatten
• Name: CNMG120408 T515 Tungaloy-Wendeplatte
• Material: Hartmetall
• Schneidstofftyp / Coating: CVD-coated carbide (T515)
• Intended application: Drehen

Facts

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

Special features

• Rhombic insert geometry
• Double-sided chipbreaker
• ISO-compliant turning insert
• Suited for cast iron machining
• Compatible with standard CNMG holders

FAQ

What materials is this insert best suited for?
The CNMG120408 T515 insert is optimised for machining cast iron; the T515 grade and CVD coating provide economical performance and good wear resistance when turning cast-iron components.

Is the insert compatible with standard CNMG toolholders?
Compatibility depends on holder form, relief angle, tolerance class, fastening and thickness; the CNMG120408 geometry and 4.76 mm thickness match standard CNMG holders when specifications are aligned.

How many cutting edges are available per insert?
The insert is double-sided with a reversible chipbreaker, offering two usable cutting edges per index, which extends service life before replacement.

What is the corner radius and how does it affect finish?
The corner radius is 0.8 mm; a larger radius enhances edge strength and can improve surface finish, while a smaller radius is preferable for fine-detail turning.

Which cutting conditions should be considered for interrupted cuts?
For interrupted cuts, select greater rigidity in the setup, conservative speeds and robust chip control; choose the T515 grade for its stable performance under such conditions.

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.