TNMG 220408 T5115 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated cemented carbide and a dual-sided chipbreaker to achieve stable chip control and longer tool life in cast-iron turning; order inserts directly via Metav Werkzeuge or consult the technical team for application-specific recommendations.

TNMG220408 T5115 — Indexable Turning Insert (TNMG) for Turning, Tungaloy

The TNMG220408 T5115 is an ISO-format indexable insert for external and internal turning, engineered for reliable performance in cast-iron machining.

• ISO TNMG220408 triangular insert, 0° rake
• CVD-coated cemented carbide grade T5115
• Dual-sided chipbreaker for cast iron
• 0.8 mm corner radius, 4.76 mm thickness

Consistent machining performance for cast-iron applications

The CVD-coated cemented carbide grade T5115 offers a balance of wear resistance and edge stability, which is particularly advantageous when turning cast iron. The double-sided chipbreaker improves chip formation and evacuation, reducing interruptions and the risk of built-up edge. As an ISO-format insert, compatibility with ISO toolholders is defined by form, clearance angle, tolerance class, clamping method, size and thickness, ensuring predictable integration into standard turning systems. This combination supports stable metal removal rates and consistent component quality.

Cost-efficiency through extended service life and quick indexing

Indexability and a robust geometry translate into reduced tooling costs per workpiece. The triangular, double-sided design allows multiple available cutting positions, extending service life before replacement is required. The 0.8 mm corner radius and 4.76 mm thickness enhance edge strength and resistance to mechanical shock, while the neutral 0° rake provides a compromise between cutting action and edge robustness. Fewer tool changes and predictable wear behaviour contribute to lower process costs and less unplanned downtime.

Easy mounting and clear selection guidance for production use

The insert is supplied with a central cylindrical hole for secure screw clamping; correct seating and clamping ensure repeatable geometry and stable cutting. Selection of the appropriate chipbreaker and grade should be driven by workpiece material, machining method and machine/tool stability. Compatibility is assessed via the insert form and ISO designation; the supplied TNMG220408 format, triangular shape and 60° wedge angle fit common turning tool systems. For complex setups or unusual materials, technical consultation is recommended to match insert geometry and grade to process demands.

Contact Metav Werkzeuge for personalised application advice and availability of Tungaloy inserts, quoting model TNMG220408 T5115 or SKU 6853026-Tungaloy

Technical data

• Article number: 6853026

• Manufacturer SKU: TUN6853026

• Internal SKU: 6853026-Tungaloy

Core specifications

• ISO designation: TNMG220408
• Grade / coating: T5115 (CVD-coated cemented carbide)
• Shape: Triangular
• Size: 22
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Rake angle: 0°
• Wedge angle: 60°

Features & compatibility

• Hole: with hole, cylindrical hole
• Chipbreaker: double-sided
• Material: cemented carbide
• Application: Turning (external and internal)
• Model series: ISO turning indexable inserts

FAQ

Is this insert suitable for cast-iron turning?
The TNMG220408 T5115 from Tungaloy is formulated as a universal grade for cast iron; the T5115 coating and double-sided chipbreaker support controlled chip formation and wear resistance in cast-iron operations (SKU: 6853026-Tungaloy).

How is the insert mounted in a holder?
Mounting is by screw clamping through the central cylindrical hole; correct seating according to ISO form, clearance angle and tolerance class ensures repeatable cutting geometry for this TNMG-style indexable insert.

What advantages does the 0.8 mm corner radius provide?
A 0.8 mm corner radius increases edge strength and reduces the likelihood of chipping under interrupted cuts, delivering more stable tool life for roughing and semi-finishing passes.

Can the insert be used for internal turning as well as external turning?
Yes; the ISO-format triangular insert is applicable to both external and internal turning when the holder and clamping system are compatible with the TNMG220408 dimensions and form.

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.

Hersteller: Tungaloy-NTK Germany GmbH, Katzbergstraße 3a, 40764 Langenfeld - Geschützte Markenzeichen und Warenbezeichnungen liegen im Recht ihrer jeweiligen Eigentümer. Markennamen und geschützte Warenzeichen werden ausschließlich zu Erklärungszwecken genannt. Es besteht keinerlei Verbindung zwischen unserem Unternehmen und den genannten Marken. Es handelt sich bei dem angebotenen Artikel um originale fabrikneue Waren des Herstellers.