CNMM 250916 T9235 Wendeplatten - Tungaloy

Benefit from the combination of a tough CVD‑coated carbide grade and ISO‑standard geometry for consistent turning under unstable or interrupted conditions; the 1.6 mm corner radius and 80° rhombic form support robust edge strength and predictable chip control. Order original inserts directly via Metav Werkzeuge or consult our machining advisers if application details need clarifying.

CNMM250916-TUS T9235 indexable turning insert — ISO CNMM 250916, 80° rhombic, Tungaloy

A CNMM250916-TUS T9235 indexable insert for ISO‑standard turning, optimised for steel work under interrupted or unstable cutting conditions

• CVD-coated carbide grade T9235
• ISO CNMM 250916 geometry, 80° rhombic
• 1.6 mm corner radius for robust profiles
• Cylindrical hole for secure clamping

Consistent performance where stability is limited

The insert combines a CVD‑coated surface treatment with a tough carbide substrate, delivering wear resistance while preserving edge integrity in demanding turning operations. The ISO CNMM 250916 geometry with an 80° included angle spreads cutting forces and reduces the risk of catastrophic edge failure, which is especially valuable when machining billets with vibration or interrupted cuts. The T9235 grade is formulated for steel at lower cutting speeds and provides reliable performance where chip formation and edge retention are critical. This technical pairing supports predictable tool life and reduces workpiece rework, improving overall process efficiency.

Practical compatibility and mounting guidance for reliable clamping

Compatibility with toolholders is determined by the insert’s shape, clearance angle, tolerance class, fastening method, size and thickness; the rhombic plate and cylindrical hole require a matching ISO CNMM clamp and screw assembly. The 0° clearance angle and plate thickness of 9.52 mm give a stable seat in many external and internal turning holders, while the 1.6 mm corner radius balances strength and profile fidelity for external profiles and semi‑roughing passes. Selecting the correct chipbreaker (TUS) and matching feed/speed to the grade ensures consistent chip control and extends the effective life of the cutting edge.

Why this insert benefits production planning and process reliability

Using a standardised ISO insert such as this reduces inventory complexity and simplifies tool changeovers across multiple lathes. The CVD coating improves resistance to abrasion and built‑up edge, contributing to repeatable surface finish quality even under intermittent cutting. For engineering teams, the measurable features — size, radius, thickness, and included angle — mean predictable set‑ups and easier documentation of machining parameters. The result is improved machine uptime and a lower risk of scrap when facing unstable clamping or variable part geometry.

For tailored recommendations on applications or to obtain original Tungaloy CNMM250916-TUS inserts (SKU TUN6786056), contact Metav Werkzeuge for expert advice and fast supply.

Technical data

• Article number: 6786056
• SKU: 6786056-Tungaloy
• Manufacturer SKU: TUN6786056
• Designation: CNMM250916-TUS
• Brand: Tungaloy

Facts

• Size: 25 mm
• Plate thickness: 9.52 mm
• Included angle: 80°
• Corner radius: 1.6 mm
• Clearance angle: 0°
• Hole style: cylindrical

Special features

• Material: carbide
• Coating/grade: CVD‑coated, T9235
• Plate form: rhombic
• Chipbreaker: TUS
• Application: turning
• ISO series: ISO‑standard indexable turning inserts

FAQ

What workpiece materials are suitable for this insert?
The grade T9235 and CVD‑coated carbide construction are intended primarily for machining steel; the insert performs well at lower cutting speeds and in interrupted or unstable cutting conditions.

How is holder compatibility determined for the CNMM250916-TUS?
Compatibility depends on the insert’s shape, clearance angle, tolerance class, fastening method, size and thickness; the rhombic form and cylindrical hole require a matching ISO CNMM indexable holder and clamp arrangement.

Can this insert be used for internal turning as well as external turning?
Yes, ISO‑standard indexable plates from this series are suitable for both external and internal turning operations when installed in the correct holder geometry and with appropriate cutting parameters.

What advantage does the 1.6 mm corner radius provide?
A 1.6 mm corner radius increases edge strength and reduces chipping risk during interrupted cuts, while still allowing acceptable profile definition for semi‑roughing and finishing passes.

How does the TUS chipbreaker influence machining?
The TUS chipbreaker is designed to support controlled chip formation with the T9235 grade, enhancing evacuation and reducing the likelihood of long, entangling chips during turning.

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.