CNMA 120416 T5125 Wendeplatten - Tungaloy

Take advantage of the CVD-coated carbide T5125 for improved wear resistance and the ISO‑specified geometry for predictable fitting in compatible holders; order directly via Metav Werkzeuge or consult our technical advisors for application support.

CNMA 120416 T5125 ISO turning insert for external and internal turning — Tungaloy

CNMA 120416 T5125 is an ISO‑specification indexable turning insert designed for general external and internal turning, offering a robust CVD coating and geometry suited to interrupted cuts and less stable setups.

• ISO‑specified rhombic insert for versatile turning
• CVD‑coated carbide grade T5125 for cast iron
• 80° insert with 1.6 mm corner radius
• Cylindrical hole, compatible with standard holders

Reliable cutting performance under interrupted conditions

The combination of a CVD‑coated surface and carbide substrate delivers extended tool life where chip formation and edge integrity are critical. The selected grade T5125 is formulated as a tougher option for working with cast iron and for operations where vibrations or interrupted cuts occur; this reduces the risk of premature chipping and extends productive tool life. This paragraph focuses on the measurable benefit of fewer changeovers and steadier process windows for shops facing variable clamping stability.

Predictable fit and fast tool changeover

Compliance with ISO designation and the standardised rhombic format ensures compatibility with a wide range of external holders and boring bars. The insert’s 80° approach angle and cylindrical hole provide a reliable seating and clamping interface, which simplifies indexing and repeatability when mounting. Clear, standardised geometry reduces set‑up time and helps maintain concentricity during multiple insert changes, supporting efficient production cycles where consistent part tolerances matter.

Strength and surface quality balance

The 1.6 mm corner radius and 4.76 mm thickness offer a balanced compromise between edge strength and the ability to achieve acceptable surface finishes in roughing to semi‑finishing passes. A larger corner radius increases edge robustness for heavier cuts, while the overall insert geometry supports moderate feed rates without sacrificing control of the machined surface. The result is a versatile component that contributes to fewer rejected parts and steadier surface quality across batches.

Application guidance and system considerations

Designed primarily for turning applications, this insert performs best in external and internal operations on cast iron and in situations with interrupted cutting. The recommended system build comprises the ISO insert, a matching external holder or boring bar, a suitable shim and clamp set, and replacement fixing screws. Absence of a dedicated chipbreaker means selection of feeds and depths should consider chip control strategies; pairing the insert with appropriate holder geometry helps maintain chip flow and process security.

For tailored advice on applying the Tungaloy CNMA 120416 T5125 insert in specific machining scenarios, contact Metav Werkzeuge for application recommendations or to request technical documentation — info@metav-werkzeuge.com · +49 2822 7131930

Technical data

• Article number: 6852955
• Manufacturer SKU: TUN6852955
• Seller SKU: 6852955-Tungaloy
• Model series: ISO turning indexable inserts
• Manufacturer: Tungaloy

Facts

• ISO designation: 120416
• Size: 12 mm
• Thickness: 4.76 mm
• Approach angle: 80°
• Relief angle: 0°
• Corner radius: 1.6 mm

Special features

• Material: carbide
• Coating/grade: T5125 (CVD‑coated)
• Plate shape: rhombic
• Hole: with cylindrical hole
• Chipbreaker: none
• Typical application: external and internal turning, interrupted cuts
• System setup: insert, holder/boring bar, shim/clamp set, screws

FAQ

What materials is this insert optimised for?
The Tungaloy CNMA 120416 T5125 insert is optimised for cast iron and similar materials where a tougher grade and good chip control under interrupted cutting are required.

Does the insert fit standard ISO holders?
Yes, the CNMA 120416 format follows ISO dimensions and the cylindrical hole and rhombic form provide compatibility with standard external holders and boring bars designed for this insert type.

What is the corner radius and how does it affect use?
The insert features a 1.6 mm corner radius; this offers increased edge strength for heavier cuts while still allowing acceptable surface finish in semi‑finishing operations.

Is there a chipbreaker integrated?
This insert is supplied without a dedicated chipbreaker; chip control is achieved through machining parameters and appropriate holder geometry.

Which coating is applied and what is its benefit?
The grade T5125 is a CVD‑coated formulation designed to improve wear resistance and reduce flank wear in demanding turning operations.

What components complete the tool system for this insert?
A compliant tool system includes the ISO insert, a matching external holder or boring bar, an underlay/shim and clamp set, plus suitable fixing screws to ensure stable clamping and repeatable seating.

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.