TNMG 160404 T5125 Wendeplatten - Tungaloy

Benefit from the combination of a CVD‑coated carbide T5125, a triangular ISO insert with 60° geometry, and a 0.4 mm corner radius for dependable interrupted cutting and consistent tool life; order the TNMG160404 T5125 Tungaloy insert directly via Metav Werkzeuge or consult the technical advisors if needed.

TNMG160404 T5125 TNMG turning insert (ISO triangular, 60°) — Tungaloy

TNMG160404 T5125 is an ISO‑standard triangular indexable insert for external and internal turning, optimised for interrupted cuts and less stable machining conditions

• CVD‑coated grade T5125 for tougher conditions
• Triangular ISO insert with 60° cutting angle
• 0.4 mm corner radius for precise finishing
• Double‑sided chipbreaker with cylindrical hole

Dependable performance for interrupted turning

The CVD‑coated carbide grade T5125 is formulated to deliver increased toughness where cuts are interrupted or clamping stability is limited. As an ISO triangular insert with a 60° included angle, it provides a balance between cutting strength and access to the workpiece; the 0.4 mm corner radius supports consistent edge engagement and predictable tool forces. In practice this means fewer edge failures during plunging or interrupted passes and a more stable production flow when machining cast iron parts under varying conditions.

Coating and substrate explained for reliable application

A CVD (chemical vapour deposition) hard coating on a carbide substrate combines wear resistance with an underlying toughness that resists chipping. The CVD coating reduces flank wear and maintains a sharp cutting edge, while the carbide body absorbs shock in interrupted cuts. This technical pairing helps to extend effective edge life and keeps cycle times steady, so machining cycles deliver repeatable component quality without over‑sizing allowances for tool loss.

ISO compatibility and straightforward toolholder matching

The insert follows ISO specifications for turning plates, so holder compatibility is determined by form, relief angle, tolerance class, clamping and thickness. The triangular shape and cylindrical hole allow clamping in many standard TNMG‑capable holders and boring bars; the double‑sided design doubles available cutting edges per insert. Specification‑driven exchange and predictable positioning reduce set‑up time and help standardise inventory across the production shop floor.

Production advantages and economical edge management

Because the insert is double‑sided, the effective cost per cutting edge is reduced and replacement intervals are simplified. The robust grade and chipbreaker design support stable chip formation in cast iron, lowering the risk of secondary operations and rework. More consistent tool life contributes to predictable tooling budgets and fewer unplanned tool offsets, which in turn supports an efficient, high‑uptime machining process.

Surface quality and selection guidance

The 0.4 mm corner radius moderates cutting forces while still enabling good surface finish on typical cast iron components; a larger radius would improve finish at the expense of cutting load, while a smaller radius shortens edge life under impact. Selecting the double‑sided chipbreaker tailored to the material and feed conditions will ensure controlled chip flow and protect the insert edge during interrupted cuts. For external and internal turning, pair the insert with holders matched to the ISO form and thickness to achieve repeatable clamping and orientation.

For high‑reliability interrupted turning, prefer the Tungaloy T5125 grade and contact Metav Werkzeuge for application advice or procurement through their technical team.

Technical data

• Article number: 6850282
• Manufacturer SKU: TUN6850282
• Model series: ISO‑Drehwendeschneidplatten
• Material: Hartmetall
• Shape: triangular
• Brand: Tungaloy

Facts

• Insert designation: TNMG160404
• ISO code: 160404
• Grade: T5125
• Corner radius: 0.4 mm
• Thickness: 4.76 mm
• Size: 16 mm
• Cutting angle: 60°
• Relief angle: 0°
• Hole: with cylindrical hole
• Chipbreaker: double‑sided

Special features

• CVD‑coated carbide substrate
• Suited for interrupted cuts and less stable conditions
• Designed for turning (external and internal)
• Double‑sided indexable insert
• ISO‑standard geometry for broad holder compatibility
• Triangular plate for three cutting edges per side
• Cylindrical hole for positive clamping

FAQ

What materials is this insert optimised for?
The TNMG160404 T5125 insert is optimised for cast iron machining; the tougher T5125 grade and chipbreaker design are selected to handle interrupted cuts typical in cast iron work.

Can this insert be used in standard ISO holders?
Yes. The insert follows ISO dimensions and the triangular form, thickness and cylindrical hole permit use in standard TNMG‑compatible holders and boring bars when the holder matches the ISO form and tolerance.

How many cutting edges are available per insert?
Thanks to the triangular, double‑sided design, the insert provides multiple indexable cutting edges, which reduces cost per edge and simplifies tool management.

What does the 0.4 mm corner radius affect in practice?
A 0.4 mm corner radius offers a compromise between surface finish and edge strength: it helps produce a consistent finish while reducing the chance of chipping under interrupted loading.

Is the T5125 grade coated and what benefit does that provide?
The T5125 variant is a CVD‑coated carbide; the coating improves wear resistance while the tougher substrate resists chipping in interrupted operations, increasing productive tool life.

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.