TNMG 220416 T5125 Wendeplatten - Tungaloy

High cutting stability and extended tool life result from the CVD-coated T5125 grade combined with a robust 1.6 mm corner radius; ideal for interrupted turning of cast iron. Order the insert directly via Metav Werkzeuge or contact our consultants for tailored application advice.

TNMG220416 T5125 triangular turning insert by Tungaloy — ISO series for turning

The TNMG220416 T5125 is an ISO triangular turning insert designed for external and internal turning of cast iron under interrupted cutting conditions and less stable setups.

• CVD-coated T5125 for tough cast iron conditions
• Triangular ISO form with 60° cutting angle
• 1.6 mm corner radius for robust edge life

Consistent cutting performance for interrupted turning

The insert combines a CVD-coated wear layer with a cemented carbide substrate to resist crater and flank wear in severe chip conditions. The specified T5125 grade is a tougher formulation developed for machining cast iron where intermittent cuts, vibration or limited fixturing can cause high mechanical loads on the cutting edge. This construction maintains a predictable wear pattern, enabling longer tool life and reduced insert indexing frequency, which supports steady cycle times and fewer tool changes on production lines.

ISO compatibility and secure clamping for reliable assembly

Designed as an ISO triangular plate with a 60° cutting geometry and a cylindrical centre hole, the insert mates with standard ISO holders when form, clearance, tolerance class, fastening and plate thickness are matched. The plate thickness of 4.76 mm and nominal size 22 mm ensure mechanical rigidity when seated on an appropriate clamp or screw system. Specifying the correct hold-down and pocket geometry prevents slippage and secures repeatable positioning, which is essential for maintaining consistent dimensional tolerances in turned components.

Productivity benefits from geometry and chip control

A 1.6 mm corner radius provides a strong, fracture-resistant edge suited to roughing and medium finishing operations on cast iron, while the double-sided chipbreaker offers two indexed cutting edges per face to extend service life. The combination of edge geometry and chip control reduces the risk of edge chipping during interrupted cuts and helps evacuate chips reliably, decreasing downtime for cleaning and slowing tool wear. These factors translate directly into improved uptime and lower total machining cost per part.

Practical guidance for selection and application

Select the chipbreaker and grade to match workpiece stability and the specific cast-iron grade: the tougher T5125 grade is intended where occasional interruptions occur or where clamping is less rigid. The insert is indexable and reversible, permitting multiple edge positions before replacement. While exact cutting data depend on machine capability, holder rigidity and material grade, the emphasis should be on maintaining stable feed and avoiding excessive depth of cut when conditions are marginal; this preserves edge integrity and maximises the service life of the indexable plate.

Contact Metav Werkzeuge for application-specific recommendations and available packaging options; Metav Werkzeuge can advise on the optimal holder and cutting parameters for this Tungaloy insert

Technical Data

• Article number: 6850326
• SKU: 6850326-Tungaloy
• Manufacturer SKU: TUN6850326

Facts

• Corner radius: 1.6 mm
• Thickness: 4.76 mm
• Size: 22 mm
• Cutting angle: 60°
• Clearance angle: 0°

Special features

• Coating: T5125 (CVD)
• Material: cemented carbide
• Plate shape: triangular
• Centre hole: with cylindrical hole
• Chipbreaker: double-sided
• Application: turning, suited for cast iron, interrupted cuts
• Series: ISO turning insert series

FAQ

Which materials is this insert primarily intended for?
The insert is optimised for machining cast iron; the T5125 CVD-coated grade gives toughness suited to interrupted cuts and less stable set-ups.

How is the insert secured in the toolholder?
This ISO triangular plate uses a cylindrical centre hole and is designed to be clamped by compatible ISO holders; the 4.76 mm plate thickness and standard form ensure stable seating when the correct clamp and screw are used.

Can the insert be indexed to present new cutting edges?
Yes, the insert is indexable and reversible; the double-sided chipbreaker and triangular form allow multiple edge positions to be used before replacement, improving economy.

What advantages does the T5125 coating provide?
The T5125 CVD coating increases wear resistance while maintaining toughness for interrupted turning, reducing chipping risk and extending usable life of the cutting edge.

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.