TNMG 220404 T9235 Wendeplatten - Tungaloy

Combine the CVD-coated T9235 carbide grade with the ISO TNMG form and a 0.4 mm nose radius for productive turning under unstable or interrupted-cut conditions; order directly via Metav Werkzeuge or consult our specialists for application-specific advice.

TNMG 220404 T9235 — Turning insert (ISO) by Tungaloy

The TNMG220404 T9235 is an ISO-standard triangular turning insert designed for external and internal turning, offering a tough grade and CVD coating for stable performance in interrupted cuts and lower cutting-speed applications.

• CVD-coated carbide T9235 for tough steels
• ISO TNMG 220404 triangular geometry 60°
• 0.4 mm nose radius for reliable tool life
• Double-sided chipbreaker; cylindrical hole fastening

High productivity where stability is limited

The combination of a CVD-coated surface and a tough T9235 grade delivers controlled wear behaviour when machining steel at reduced cutting speeds or in unstable setups. The CVD layer provides improved heat resistance and edge protection, while the substrate material maintains a robust cutting edge. This results in fewer unplanned tool changes and a steadier machining cadence, which in turn reduces non-productive time and enhances overall process efficiency.

Precise geometry for predictable cutting results

The insert follows the ISO TNMG 220404 geometry with a 60° wedge angle and a 0° relief, features that are frequently specified for general-purpose external and internal turning. The triangular shape and cylindrical hole are compatible with standard clamping systems; compatibility with a holder is governed by form, relief angle, tolerance class, fastening method, size and thickness. The 22 mm inscribed circle and 4.76 mm plate thickness ensure a solid seat in appropriately rated holders, while the 0.4 mm nose radius balances surface finish and strength for many turning tasks.

Chip control and application guidance for consistent results

Equipped with a double-sided chipbreaker, the insert supports reliable chip formation across a range of cut depths and feed rates. The breaker design is intended to maintain short, controllable chips in interrupted and unstable cutting, which reduces the risk of workpiece damage and improves machine uptime. For best results, select the chipbreaker and grade to match the workpiece material, machining strategy and fixture rigidity; the insert is optimised for steel machining where lower speeds and interrupted cuts prevail.

System compatibility and workshop integration

This item is supplied as an ISO insert element within a system comprising an ISO insert, a matching external holder or boring bar, a shim/clamp set and replacement screws as required. The insert is indexable thanks to its double-sided design, allowing economical use of both edges before replacement. If uncertainty exists about holder match, clamping torque or parameter adjustment, technical consultation is recommended to tailor the solution to the machine, setup and component tolerances.

For tailored advice on integrating Tungaloy turning inserts into a production process and to confirm holder compatibility, contact Metav Werkzeuge for expert consultation at info@metav-werkzeuge.com or call +49 2822 7131930 — assistance is available to specify the correct insert, holder and parameters for the job.

Technical Data

• Article number: 6785958
• Manufacturer SKU: TUN6785958
• SKU: 6785958-Tungaloy
• Manufacturer: Tungaloy
• Model series: ISO-Drehwendeschneidplatten

Numbers

• Insert size (inscribed circle): 22 mm
• Plate thickness: 4.76 mm
• Nose radius: 0.4 mm
• Included angle: 60°
• Relief angle: 0°

Special features

• Shape: triangular
• Hole: cylindrical (with hole)
• Chipbreaker: double-sided
• Grade/coating: T9235, CVD-coated carbide
• Typical application: external and internal turning; interrupted cuts
• System components: compatible outer holder/boring bar, shim/clamping set, replacement screws

FAQ

What materials is this insert best suited for?
The TNMG220404 T9235 insert is formulated for machining steel; the T9235 grade and CVD-coated carbide combination is tuned for tougher steel work under lower cutting speeds and unstable cutting conditions.

How does the double-sided chipbreaker benefit production?
A double-sided chipbreaker extends usable edges and provides repeatable chip control during external and internal turning, reducing downtime for edge changes and improving process consistency with the TNMG 220404 geometry.

Which holders are compatible with this TNMG insert?
Compatibility is determined by insert form, relief angle, tolerance class, fastening method, size and thickness; the TNMG220404 fits ISO holders designed for TNMG inserts and uses the cylindrical-hole clamping arrangement specified for this form.

Can the insert be used for interrupted cuts?
Yes, the T9235 grade and the insert’s robust geometry make it suitable for interrupted cuts and less stable setups, where edge toughness and heat resistance are more critical than high-speed wear resistance.

What does the CVD coating provide in this application?
The CVD coating forms a hard, heat-resistant surface layer that delays edge breakdown and improves performance in abrasive steel machining, which helps to maintain surface quality and extend edge life.

How many cutting edges are available per insert?
The triangular, double-sided design provides multiple indexing positions; each side can be indexed according to the holder and clamping system, enabling economical use of the insert before replacement.

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.