CNMG 120408 T9225 Tungaloy Wendeplatten - Tungaloy

Take advantage of the combination of a T9225 CVD-coated carbide grade and a 0.8 mm nose radius for robust medium-to-heavy steel turning; the ISO conformity and rhombic form ensure straightforward replacement and predictable performance. Order the CNMG120408 T9225 indexable insert directly via Metav Werkzeuge or ask our consultants if needed.

CNMG120408 T9225 indexable insert for turning — CVD-coated carbide, 0.8 mm nose radius (Tungaloy)

The CNMG120408 T9225 is an ISO-standard rhombic, double-sided indexable insert designed for external and internal turning, optimised for medium-to-heavy steel machining.

• CVD-coated carbide for long tool life
• Universal T9225 grade for medium-heavy steel
• Double-sided chipbreaker for stable cuts
• Rhombic ISO shape with cylindrical hole

Greater process reliability under changing cutting conditions

The T9225 grade is a CVD-coated carbide developed as a robust universal solution for medium to heavy steel machining. The chemical vapour deposition (CVD) coating increases wear resistance and helps maintain a stable cutting edge when cuts are interrupted or engagement conditions vary. As a result, operators can expect more consistent cycle times and fewer unscheduled indexings, which translates into improved throughput and less production variability. The combination of grade and coating benefits cost-efficiency through extended tool life and reduced changeovers.

Simple integration with ISO turning systems

ISO conformity means the rhombic insert fits standard CNMG seats when holder geometry and tolerance class match. Compatibility is governed by form, clearance angle, tolerance class, fastening, size and thickness. The insert’s cylindrical hole and standard dimensions allow secure clamping in compatible holders, whether using an external holder or a boring bar. The usual system setup comprises the ISO insert, a matching external holder or boring bar, a shim/clamping set and replacement screws, making it straightforward to replace worn inserts and restore machining capability quickly.

Improved machining quality with predictable cutting behaviour

A 0.8 mm nose radius balances robustness and surface finish: it increases edge strength for interrupted cuts while still enabling acceptable surface quality on many turning operations. The 4.76 mm thickness and rhombic form contribute to rigidity at the cutting zone, reducing chatter risk and supporting stable cutting parameters. The double-sided chipbreaker design permits economical indexing of unused faces, maintaining consistent chip control and enabling longer intervals between replacements. These attributes help shops achieve production targets with fewer stoppages.

Practical guidance for grade and chipbreaker selection

The double-sided chipbreaker must be matched to the workpiece material, cutting direction and machine stability. For medium-to-heavy steel work, the T9225 grade offers balanced toughness and wear resistance; choose a chipbreaker variant suited to the desired chip form and depth of cut. If uncertainty remains about the correct holder or chipbreaker, consult technical documentation or contact the technical team for tailored recommendations — correct pairing reduces scrap and improves cycle efficiency.

Contact Metav Werkzeuge for application advice and order the CNMG120408 T9225 insert from stock; our specialists can confirm holder compatibility and recommend the optimal chipbreaker — eMail: info@metav-werkzeuge.com | Tel: +49 2822 7131930

Technical data

• Article number: 6781243-Tungaloy
• Manufacturer SKU: TUN6781243
• Model series: ISO turning indexable inserts
• Material: carbide
• Coating / Grade: T9225 CVD-coated

Facts

• Size: 12 mm
• Thickness: 4.76 mm
• Nose radius: 0.8 mm
• Relief (free) angle: 0°
• Basic angle: 80°
• Hole: cylindrical hole

Special features

• Shape: rhombic (CNMG)
• Chipbreaker: double-sided
• Application: turning (external and internal)
• Compatibility: ISO-standard insert seat and holders
• System components: insert, holder/boring bar, shim/clamping set, screws

FAQ

What materials is this insert suitable for? The CNMG120408 T9225 indexable insert is formulated as a universal solution for medium-to-heavy steel machining, providing a balance of toughness and wear resistance suitable for varied cutting conditions.

How does the T9225 grade influence performance? The T9225 CVD-coated carbide grade increases wear resistance while offering sufficient toughness for interrupted cuts, resulting in more stable cutting behaviour and longer effective tool life for steel turning.

Will this insert fit my existing CNMG holder? Compatibility depends on holder form, clearance angle, tolerance class, clamping method, size and thickness; the CNMG120408 conforms to ISO dimensions, so matching those parameters ensures correct seating in standard CNMG holders.

What advantages does the 0.8 mm nose radius provide? A 0.8 mm nose radius improves edge strength for heavier or interrupted cuts and helps maintain a reproducible surface finish, offering a compromise between durability and achievable finish quality.

Can the insert faces be indexed to extend service life? Yes, the double-sided chipbreaker design allows indexing of unused faces, enabling economical utilisation of all cutting edges before replacement of the insert.

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.