DCMT 11T312 T9225 Wendeplatten - Tungaloy

Take advantage of a robust CVD‑coated carbide grade and ISO conformity to ensure stable performance in medium‑to‑heavy steel turning; the T9225 grade combines toughness and wear resistance for interrupted and variable cuts. Order the DCMT 11T312 T9225 indexable insert directly via Metav Werkzeuge or ask our consultants for application advice.

DCMT 11T312 T9225 indexable turning insert for turning, Tungaloy, 1.2 mm radius, 7° clearance

DCMT 11T312 T9225 is an ISO‑standard indexable insert designed for external and internal turning in industrial production; the rhombic form and secure hole seating enable reliable clamping in compatible holders.

• CVD-coated carbide T9225 for steel machining
• ISO-standard rhombic insert, 7° clearance
• 1.2 mm corner radius for versatile turning
• Cylindrical hole with 40°–60° countersink

Consistent productivity for medium‑to‑heavy steel turning

The combination of a CVD‑coated carbide substrate and the T9225 grade delivers increased toughness where cutting conditions vary. This makes the insert particularly suitable for turning operations that involve mild interruptions or changing engagement depths. The 1.2 mm corner radius helps distribute cutting forces, reducing edge chipping and extending tool life. For workshops seeking steady cycle times and fewer insert changes, this provides a clear efficiency gain through reduced downtime.

Reliable chip control and stable cutting action

A single‑sided chipbreaker geometry promotes predictable chip formation and evacuation under a range of feeds and speeds, which improves surface finish and reduces the risk of built‑up edge. The rhombic profile combined with 7° clearance gives secure cutting geometry that supports dimensional consistency on turned parts. Explaining briefly: a chipbreaker shapes the swarf away from the cutting zone, helping to avoid entanglement and improving machining safety and repeatability.

Secure seating and system compatibility for production use

The insert follows ISO form and sizing so compatibility depends on holder form, clearance angle, tolerance class, fastening method, size and thickness. The cylindrical hole with single‑side countersink (40°–60°) ensures reliable clamping in standard toolholders and simplifies tool change-out. With a 3.97 mm thickness and 11 mm size, the component integrates into common turning systems as part of an insert, holder, shim and screw assembly, enabling straightforward inventory and replacement management.

Practical selection and handling guidance

Select the T9225 grade and the single‑sided chipbreaker when working predominantly with steel and when variable cutting conditions require a tougher edge. For light finishing passes consider a smaller corner radius, while this 1.2 mm radius suits general turning and roughing. Store inserts in their original packaging, inspect seating surfaces for chips before assembly, and follow the holder manufacturer’s torque recommendations to maintain clamping integrity. These simple precautions protect quality and maximise the service life of the insert.

For reliable medium‑to‑heavy steel turning with Tungaloy’s T9225 grade, contact Metav Werkzeuge for availability and tailored application advice via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6781079

• SKU (manufacturer): TUN6781079

• SKU: 6781079-Tungaloy

• Model series: ISO‑Drehwendeschneidplatten

Facts

• Material: Carbide
• Coating: CVD
• Corner radius: 1.2 mm
• Relief angle: 7°
• Included angle: 55°
• Thickness: 3.97 mm
• Size: 11

Special features

• ISO designation: DCMT11T312
• Grade/sort: T9225
• Plate form: Rhombic
• Hole: with hole
• Hole style: Cylindrical hole + single‑side countersink (40°–60°)
• Chipbreaker: Single‑sided
• Typical application: Turning

FAQ

What materials is this insert suited for?
The answer: The DCMT 11T312 T9225 insert is designed primarily for steel machining and performs well in medium‑to‑heavy turning conditions where toughness is required.

How does the T9225 grade affect performance?
The answer: The T9225 CVD‑coated carbide provides a balance of wear resistance and toughness, improving tool life under variable engagement and light interruption during turning.

Is the insert compatible with standard ISO holders?
The answer: Yes; the insert follows ISO form and sizing, but compatibility depends on holder form, clearance, tolerance class, fastening and thickness—verify the holder matches the insert’s DCMT11T312 geometry.

What does the cylindrical hole and countersink mean for clamping?
The answer: The cylindrical hole with 40°–60° countersink ensures secure seating and straightforward clamping with the correct screw and shim combination, which supports repeatable positioning.

Can this insert be used for internal turning as well as external?
The answer: The rhombic shape and 7° clearance make the insert suitable for both external and internal turning operations provided the toolholder offers the necessary access and rigidity.

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.