TNMG 160412 T5125 Wendeplatten - Tungaloy

Combine the CVD-coated carbide grade T5125 with a 60° triangular geometry and a 1.2 mm corner radius for dependable performance in interrupted turning; order the inserts directly via Metav Werkzeuge or consult our advisers for application-specific selection.

TNMG160412 T5125 Turning insert (ISO triangle) — Tungaloy

The TNMG160412 T5125 is an ISO-standard triangular turning insert designed for external and internal turning, offering a robust solution for interrupted cuts and less stable machining conditions.

• CVD-coated carbide for high wear resistance
• 60° triangular geometry for stable cutting
• Double-sided chipbreaker for flexible use
• Suitable for interrupted turning in cast iron

Consistent performance in interrupted turning

The combination of a CVD-coated substrate and the T5125 grade provides a tougher carbide matrix that resists edge chipping during interrupted cuts. This makes the insert particularly suitable for machining cast iron where cut engagement can vary. The geometry reduces the likelihood of premature edge failure, improving process reliability and reducing unexpected downtime. Selecting this insert helps maintain consistent material removal rates and surface quality even under less stable clamping or interrupted machining cycles.

ISO compatibility for straightforward tool selection

Being an ISO-standard indexable insert, the triangular shape with a 60° included angle simplifies holder selection and inventory management. Compatibility is determined by form, relief angle, tolerance class, fastening and the insert’s size and thickness; this insert features a triangle form, a cylindrical hole for secure clamping, and a plate thickness of 4.76 mm, ensuring stable seating in appropriately matched external holders or boring bars. Clear ISO designation streamlines procurement and guarantees interchangeability across standard tool systems.

Durability and process stability for productive turning

A double-sided chipbreaker and the 1.2 mm corner radius balance cutting strength and edge life: the breaker supports chip control across a range of feed rates while the modest corner radius offers strength against impact without sacrificing achievable surface finish. The carbide base with its CVD layer delivers consistent wear resistance, contributing to longer tool life and predictable tool-change intervals. When combined with suitable cutting data and a matched holder, the insert supports higher productivity and repeatable results in series production.

Choosing the right setup for best results

Select the chipbreaker and insert grade according to workpiece material and stability of the setup; the tougher T5125 grade is intended for less stable conditions and interrupted cuts in cast iron. Where higher stability and continuous cuts are present, other grades or finer chipformers may improve surface finish and cycle times. Ensure the clamping set, backing pads and fixing screws conform to the holder’s tolerance class to maintain repeatable seating and minimise vibration.

For reliable interrupted turning with Tungaloy’s T5125 grade, contact Metav Werkzeuge for tailored advice and to secure the TNMG160412 insert — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6853021
• Manufacturer SKU: TUN6853021
• ISO designation: TNMG160412
• Model series: ISO turning inserts
• Application: Turning
• Material: Carbide (Hartmetall)
• Grade/coating: T5125 (CVD-coated)

Facts

• Corner radius: 1.2 mm
• Plate thickness: 4.76 mm
• Inscribed circle: 16 mm
• Relief angle: 0°
• Included angle: 60°

Special features

• Triangle plate form
• Cylindrical hole for clamping
• Double-sided chipbreaker
• ISO-standard indexable insert
• Suited to interrupted turning in cast iron
• System: insert plus matching external holder, backing pad and clamping set

FAQ

What materials is this insert suitable for?
The TNMG160412 T5125 insert is designed primarily for cast iron applications and excels in interrupted machining or less stable conditions due to its tougher CVD-coated carbide grade.

How is the insert clamped in the holder?
Clamping is achieved via the cylindrical hole and the matching holder’s fastening system; correct backing pad and screw torque are essential for secure seating and repeatable positioning.

Can this insert be used on internal turning jobs?
Yes — the ISO triangular form and the double-sided chipbreaker make the insert suitable for both external and internal turning operations, provided the holder geometry permits safe clearance.

What advantage does the 1.2 mm corner radius offer?
A 1.2 mm corner radius enhances edge strength for interrupted cuts while still enabling acceptable surface finish; it is a compromise between robustness and finish quality.

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.