CNMA 120412 T5115 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated carbide T5115, an 80° rhombic geometry and a 1.2 mm corner radius for consistently productive turning of cast iron; order directly via Metav Werkzeuge or consult our specialists for process optimisation.

CNMA120412 T5115 CNMA 120412 turning insert — CVD-coated carbide, rhombic, Tungaloy

CNMA120412 T5115 is an ISO‑standard rhombic turning insert designed for external and internal turning, offering a universal grade for cast iron applications.

• CVD-coated carbide grade T5115
• Universal for cast iron machining
• ISO CNMA 120412 rhombic insert
• 80° cutting geometry, 1.2 mm corner radius

Reliable wear resistance and steady cutting performance for cast iron

The CVD‑coated carbide grade T5115 delivers a balanced combination of wear resistance and edge stability, which reduces tool changes and supports uninterrupted production. The insert’s rhombic CNMA geometry and 80° cutting angle produce a stable contact zone that helps maintain dimensional accuracy during external and internal turning. Because the coating is applied by chemical vapour deposition, the surface hardness and thermal resistance are increased, enabling longer tool life when machining abrasive grey and nodular cast iron. The result is a measurable improvement in process reliability and component consistency.

Easy integration into existing tool systems and predictable assembly

Compatibility is determined by form, clearance angle, tolerance class, fastening, size and thickness; the ISO‑conforming CNMA120412 format ensures straightforward interchangeability with standard holders. The insert is supplied with a cylindrical centre hole for secure mounting and a plate thickness of 4.76 mm, making clamp and screw engagement simple and repeatable. Specifying this format reduces setup time and prevents ambiguity at the tool change stage, enabling faster fixture swaps and fewer alignment checks in series production.

Grade and geometry explained for process optimisation

A neutral 0° relief angle together with the 1.2 mm corner radius gives a versatile balance between edge strength and achievable surface finish. The absence of an integrated chipbreaker means machining parameters should be matched to the workpiece and holder to achieve optimal chip control; this flexibility allows tailoring of feed and depth for finishing or heavier cuts. Choosing this insert supports a pragmatic approach: combine the CVD coating, robust carbide substrate and the rhombic form to improve throughput while maintaining the required component tolerances.

For reliable cast iron turning with Tungaloy quality, contact Metav Werkzeuge to order the CNMA120412 T5115 insert or request tailored machining advice via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6850146
• Manufacturer SKU: TUN6850146
• Metav SKU: 6850146-Tungaloy
• Series: ISO turning indexable inserts

Facts

• Size: 12 mm
• Plate thickness: 4.76 mm
• Corner radius: 1.2 mm
• Cutting angle: 80°
• Relief angle: 0°

Special features

• Material: carbide
• Coating: CVD
• Grade: T5115
• Shape: rhombic (CNMA)
• Hole: with hole, cylindrical
• Chipbreaker: none
• Application: turning
• Typical use: cast iron machining

FAQ

What materials is this insert intended for? The CNMA120412 T5115 insert in grade T5115 is designed as a universal option for machining cast iron, where a combination of wear resistance and edge stability is required.

How does the insert mount to a holder? This rhombic insert features a cylindrical centre hole and a standard ISO CNMA form, enabling secure clamping in compatible external or internal holders that accept CNMA‑format plates.

What benefits does the CVD coating provide? The CVD coating increases surface hardness and thermal resistance, which leads to improved wear performance and a longer life during continuous turning operations with abrasive cast iron grades.

Is there a chipbreaker on this insert? The plate is supplied without a chipbreaker, offering flexibility to match chip formation through cutting parameters and holder geometry rather than built‑in chip control.

Which dimensions are critical when checking compatibility with a holder? Compatibility is governed by the plate form, size (12 mm), thickness (4.76 mm), relief angle (0°), hole style and tolerance class; these should be matched to the chosen holder specifications.

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.