CNMG 120416 T5125 Wendeplatten - Tungaloy

Reliable CVD-coated carbide combined with a double-sided chipbreaker and a 0° clearance angle provides stable performance for interrupted turning in cast iron; benefit from enhanced edge life and consistent chip control. Order the CNMG 120416 T5125 Tungaloy insert directly via Metav Werkzeuge or ask our consultants if needed.

CNMG 120416 T5125 — ISO turning insert for cast-iron turning by Tungaloy, CVD-coated carbide

A CNMG 120416 T5125 ISO turning insert engineered for external and internal turning, optimised for interrupted cuts and less stable machining conditions.

• CVD-coated carbide for wear resistance
• Double-sided chipbreaker for interrupted cuts
• Rhombic CNMG form, 80° cutting angle
• 1.6 mm corner radius, cylindrical hole

Maximise productivity in interrupted turning

The combination of CVD-coated carbide and the tougher T5125 grade is designed to withstand the thermal and mechanical loads typical of interrupted cuts in cast iron. The CVD layer acts as a thermal barrier and improves wear resistance at elevated cutting temperatures, while the double-sided chipbreaker promotes consistent chip formation even when feed or depth of cut varies. For production environments where process stability fluctuates, this configuration reduces downtime by maintaining edge integrity and lowering the frequency of insert changes.

Strong edge and reliable surface finish with fewer tool changes

A 1.6 mm corner radius and a plate thickness of 4.76 mm give the insert mechanical strength and support during heavy engagement, which helps preserve the cutting edge and improves dimensional repeatability. The rhombic CNMG form with an 80° cutting angle provides a robust geometry for general turning while enabling controlled chip flow. Compatibility with the clamping system is defined by form, clearance angle, tolerance class, mounting and size; checking these parameters ensures the best fit with the chosen holder and contributes to consistent surface quality.

Easy integration into ISO tool systems and versatile application

As an ISO indexable insert, the component fits standard external holders or boring bars when the correct geometry and tolerance are observed. The cylindrical hole secures mounting and helps prevent rotation or misalignment during interrupted passes. System setup usually comprises the ISO insert, a matching external holder or boring bar, a backing plate/clamp set and replacement fixing screws. Selection of the appropriate chipbreaker and grade according to the workpiece material and machine rigidity results in predictable performance and economical machining cycles.

For robust cast-iron turning with Tungaloy’s proven T5125 grade, contact Metav Werkzeuge for application advice and current availability via info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6852915
• SKU: 6852915-Tungaloy
• Manufacturer SKU: TUN6852915
• Manufacturer: Tungaloy
• Material: Carbide
• Model series: ISO turning indexable inserts
• Designation: CNMG120416

Facts

• Corner radius: 1.6 mm
• Plate thickness: 4.76 mm
• Inscribed circle (size): 12 mm
• Cutting angle: 80°
• Clearance angle: 0°

Special features

• CVD-coated carbide grade T5125
• Double-sided chipbreaker
• Rhombic CNMG form
• Cylindrical hole for secure mounting
• ISO designation CNMG120416
• Application: Turning; suitable for cast iron, interrupted cuts
• System components: external holder/boring bar, backing/clamp set, spare screws

FAQ

Which machining tasks is this insert intended for?
The CNMG 120416 T5125 insert is intended for external and internal turning operations, especially where interrupted cuts occur.

Is this grade suitable for cast iron?
Yes. The T5125 grade is a tougher CVD-coated carbide tailored for cast-iron machining under interrupted or less stable cutting conditions.

How does the CVD coating benefit machining?
The CVD layer on the carbide provides a hard, thermally resistant surface that reduces flank and crater wear, which helps the CNMG 120416 T5125 retain cutting performance at higher temperatures.

What must be considered when choosing a holder?
Holder compatibility depends on insert form, clearance angle, tolerance class, mounting, size and thickness; use an ISO external holder or boring bar that matches these parameters for the CNMG 120416 specification.

What are the key dimensions to check before fitting the insert?
Important dimensions are the 1.6 mm corner radius, 4.76 mm plate thickness, 12 mm inscribed circle, 80° cutting angle and 0° clearance angle, as specified for the CNMG 120416 T5125.

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.