CCMT 120408 T9225 Wendeplatten - Tungaloy

Take advantage of the combination of proven T9225 CVD-coated carbide toughness, ISO compatibility and a compact 0.8 mm corner radius for stable medium-to-heavy turning operations; order directly via Metav Werkzeuge or consult the team for application-specific advice.

CCMT 120408 T9225 indexable insert for turning — Tungaloy

The CCMT120408 T9225 is an ISO‑standard indexable insert designed for turning applications, offering a robust universal grade and chip control for medium to heavy steel machining.

• CCMT120408 rhombic insert, 80° cutting angle
• T9225 CVD-coated carbide for medium–heavy steel
• 0.8 mm corner radius for reduced vibration
• Single-sided chipbreaker with cylindrical hole

High-performance turning under variable conditions

The CVD-coated carbide grade T9225 delivers a balanced combination of wear resistance and toughness suitable for medium to heavy steel machining, where interrupted cuts or changing engagement demand material resilience. As an indexable insert, it converts higher edge life into fewer tool changes and more productive cycles; the robust grade supports stable chip formation and predictable flank wear, which in turn reduces unplanned stoppages and contributes to a smoother production flow. The result is consistent part quality and improved process efficiency in both external and internal turning.

Secure clamping, rigid geometry and operational stability

Designed to the ISO insert standard, the plate form and fixing are decisive for holder compatibility: the fit depends on plate shape, relief angle, tolerance class, fixing method, size and thickness. The CCMT geometry with an 80° approach angle and a 7° clearance angle provides cutting stability and directional strength, while the 4.76 mm thickness increases resistance to bending and vibration. The cylindrical hole with a one‑sided countersink (40°–60°) ensures reliable clamping in compatible holders and supports repeatable positioning when rotating to a fresh cutting edge.

Practical advantages and selection guidance for machinists

The combination of a single-sided chipbreaker and rhombic shape offers versatility across common turning tasks while the 0.8 mm corner radius helps dampen chattering on less rigid set-ups. When selecting an insert grade and chipbreaker, prioritise workpiece material and cutting stability: the T9225 grade is a versatile choice for varying steel conditions and slightly interrupted cuts, translating into longer tool life and fewer interventions. For optimum results, pair the insert with a matched external holder or boring bar chosen for the plate form and thickness, and select cutting parameters that favour consistent chip evacuation and stable clamping.

For reliable medium-to-heavy turning with Tungaloy's T9225 toughness, contact Metav Werkzeuge for tailored recommendations and ordering: info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6781221
• Manufacturer SKU: TUN6781221
• SKU: 6781221-Tungaloy
• Designation: CCMT120408
• Material: carbide
• Series: ISO indexable turning inserts

Key figures

• Corner radius: 0.8 mm
• Thickness: 4.76 mm
• Size (inscribed circle): 12 mm
• Clearance angle: 7°
• Cutting angle: 80°

Special features

• CVD‑coated carbide, grade T9225
• Robust universal grade for medium to heavy steel
• Rhombic plate form (CCMT)
• Single-sided chipbreaker
• With cylindrical hole and one-sided countersink (40°–60°)
• ISO compatibility; fit determined by form, relief angle, tolerance class, fixation, size and thickness

FAQ

Which materials is this insert intended for?
The CCMT120408 T9225 indexable insert is engineered primarily for medium to heavy steel machining; the T9225 grade offers the toughness required for varying engagement and lightly interrupted cuts.

How does the hole and countersink design affect clamping?
The cylindrical hole combined with a one‑sided countersink (40°–60°) provides secure, repeatable clamping in compatible holders and helps maintain correct seating under cutting loads for the CCMT120408 insert.

What does the T9225 designation mean in practice?
T9225 denotes a CVD‑coated carbide grade optimised for balanced wear resistance and toughness, offering dependable tool life and stable chip formation in demanding turning tasks.

Can this insert be used for internal turning as well as external turning?
Yes; the geometry and chipbreaker of the insert suit both external and internal turning, though holder selection and rigidity should be adapted to the specific operation to maintain stability.

How should the corner radius and thickness influence process settings?
A 0.8 mm corner radius reduces sensitivity to vibration compared with smaller radii, and the 4.76 mm plate thickness increases rigidity—both factors permitting slightly higher feed rates and improved edge life when the machine set-up is sufficiently rigid.

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.