CNMG 160612 T5125 Wendeplatten - Tungaloy

Benefit from a CVD-coated carbide T5125 grade and a 1.2 mm corner radius that together improve edge stability and wear resistance during interrupted turning of cast iron; order the insert directly via Metav Werkzeuge or consult our specialists for matching holder recommendations. The combination of ISO compatibility and a double-sided chipbreaker ensures economical indexing and consistent chip control in less stable machining conditions.

CNMG160612 T5125 ISO turning indexable insert for turning by Tungaloy — CVD-coated carbide, 1.2 mm radius

CNMG160612 T5125 is an ISO-form indexable turning insert designed for external and internal turning applications, optimised for cast iron machining under interrupted cuts or where machine-tool stability is limited.

• CVD-coated carbide grade T5125 for wear resistance
• 1.2 mm corner radius for enhanced edge strength
• Double-sided chipbreaker with cylindrical hole

Reliable performance for cast iron and interrupted cuts

The combination of a CVD-coated surface and the T5125 toughness class provides a durable cutting edge that resists flank wear while maintaining consistent cutting behaviour when machining cast iron. This specification is particularly advantageous for interrupted cuts or unstable setups where edge robustness is essential. The coated carbide substrate supports longer tool life and predictable flank wear progression, which reduces unplanned tool changes and increases overall productivity. The insert’s construction supports repeatable performance in series production and single-part machining alike.

Geometry and secure mounting for stable turning

The CNMG160612 geometry, featuring an 80° included angle and a 1.2 mm corner radius, delivers a favourable balance between cutting-edge strength and dimensional control. The relatively large corner radius increases resistance to chipping and improves surface finish consistency when forces are variable. A cylindrical mounting hole provides positive location in ISO-compatible holders; compatibility relies on matching the insert’s form, clearance angle, tolerance class, fastening method, size and thickness to the chosen toolholder. The insert’s 6.35 mm plate thickness contributes to overall stiffness, helping to damp vibrations in less rigid setups.

Efficient chip control and economical edge usage

The double-sided chipbreaker enables effective chip segmentation and evacuation during heavy interrupted cuts, improving process security and reducing the risk of built-up edge formation. Because the insert is indexable on multiple positions, the usable life per insert is increased, lowering cost per cutting edge and simplifying logistics. The CVD-coated carbide composition promotes stable chip formation across varying feed rates and cutting depths, so the machining process becomes more predictable. Where consistent surface quality and reduced cycle deviations matter, this insert provides a pragmatic balance between performance and economy.

Choosing the right grade and further guidance

Selecting the correct chipbreaker and grade is central to achieving the desired results: the T5125 grade is chosen for its toughness and adaptability to cast iron under interrupted conditions, while other grades or chipbreakers may be preferable for continuous light cuts or different materials. Compatibility with the toolholder must be checked — ISO form, clearance, and thickness are determining factors. If adaptation to an existing holder or a change of machining strategy is being considered, specialist advice helps to match holder geometry and indexation practices to the insert’s features and the intended process.

For tailored application advice on the Tungaloy CNMG160612 T5125 indexable insert and assistance with holder selection or availability, contact Metav Werkzeuge for expert guidance and rapid delivery options

Technical Data

• Article number: 6850156
• Manufacturer SKU: TUN6850156
• SKU: 6850156-Tungaloy
• Model series: ISO turning indexable inserts
• Material: carbide
• Grade/coating: T5125, CVD-coated
• Manufacturer: Tungaloy

Core Numerical Data

• Corner radius: 1.2 mm
• Included angle: 80°
• Clearance (relief) angle: 0°
• Plate thickness: 6.35 mm
• Plate size: 16 mm

Special features

• ISO-form CNMG160612
• Double-sided chipbreaker
• Cylindrical mounting hole
• Rhombic plate shape
• Designed for turning (external and internal)
• Suited for interrupted cuts in cast iron
• Compatible with ISO holders depending on form, tolerance and fastening

FAQ

What materials is this insert designed for?
The CNMG160612 T5125 insert from Tungaloy is specifically designed for machining cast iron, with the T5125 grade optimised for interrupted cuts and less stable conditions.

How does the T5125 grade affect machining behaviour?
The T5125 CVD-coated carbide provides increased toughness and wear resistance, resulting in stable chip formation and extended edge life when machining cast iron with variable cutting forces.

Is the insert compatible with standard ISO holders?
Yes, the insert is an ISO-form CNMG160612; compatibility depends on matching holder form, clearance angle, tolerance class, fastening and plate thickness to ensure secure seating.

What are the advantages of the double-sided chipbreaker?
The double-sided chipbreaker improves chip control during interrupted cuts and extends economical usage by allowing indexing to additional cutting positions.

How does the 1.2 mm corner radius influence results?
A 1.2 mm corner radius increases edge strength and reduces the likelihood of chipping, helping to maintain surface quality when cutting conditions fluctuate.

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.