DCMT 11T304 T9225 Wendeplatten - Tungaloy

Take advantage of the combination of robust CVD-coated carbide, ISO conformity and precise geometry to maintain stable chip formation and predictable tool life; order directly via Metav Werkzeuge or request tailored advice from our consultants.

DCMT 11T304 T9225 — Tungaloy ISO indexable turning insert, CVD-coated carbide, 0.4 mm radius

The DCMT11T304 T9225 is an ISO-standard indexable turning insert designed for medium to heavy steel turning, offering a balance of toughness and wear resistance for interrupted cuts and varying engagement conditions.

• DCMT11T304 ISO indexable turning insert
• CVD-coated carbide grade T9225 for robustness
• 0.4 mm corner radius for stable cutting
• Cylindrical hole with 40°–60° single-sided countersink

Precision geometry for consistent process stability

The rhombic-shaped insert features an ISO-standard form with a 55° main angle and a 0.4 mm corner radius, engineered to deliver consistent engagement and reduced vibration in external and internal turning cycles. With a 3.97 mm thickness and defined 7° clearance angle, the geometry supports repeatable seating and secure clamping, which directly reduces run-out and contributes to predictable tool life. The measured geometry is particularly beneficial in setups where toolholder compatibility is critical; compatibility depends on insert form, clearance, tolerance class, fixation method, size and thickness.

Durable grade and coating for demanding steel applications

Built from carbide and finished with a CVD-coated carbide layer in grade T9225, the insert combines surface hardness with a core toughness that handles moderate interruptions and fluctuating cutting conditions. This T9225 grade provides robust wear resistance and stable chip formation across a wide steel range, helping to extend edge life and lower overall machining cost per part. For manufacturers seeking steady productivity under mixed engagement, this grade reduces the need for frequent index changes and supports longer production campaigns.

Practical features that aid setup and chip control

The insert includes a cylindrical hole with a single-sided countersink (40°–60°) to ensure reliable clamp engagement and precise seating in common ISO-compatible holders. The single-sided chipbreaker design assists in directing chips away from the cutting zone, improving surface finish and easing chip evacuation in both external and internal turning. Selecting an appropriate chipbreaker and matching the insert grade to the workpiece material and rigidity of the setup will yield the best results in terms of machining efficiency and component quality.

Guidance for selection and application

For turning of medium to heavy steel, choose this insert where mixed cutting conditions or short interruptions occur; the combination of T9225 coating and the rhombic form balances toughness and wear protection. When pairing with a toolholder, verify form, clearance angle, tolerance class and fixation method to ensure secure seating. For quieter cutting and longer life, consider toolholder rigidity and optimal cutting parameters; the insert’s geometry supports reduced cutting forces and improved surface integrity when feed and speed are aligned with material and machine capability.

For availability, specific grade recommendations and immediate delivery options of Tungaloy turning inserts, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 for rapid, application-oriented support.

Technical data

• Article number: 6781458
• Dealer SKU: 6781458-Tungaloy
• Manufacturer SKU: TUN6781458
• Model series: ISO turning indexable inserts
• Name: DCMT11T304 T9225 Tungaloy indexable insert

Facts

• Size: 11
• Thickness: 3.97 mm
• Corner radius: 0.4 mm
• Insert angle: 55°
• Clearance angle: 7°

Special features

• Material: carbide
• Coating / grade: CVD-coated, T9225
• Shape: rhombic
• Hole: cylindrical hole + single-sided countersink (40°–60°)
• Chipbreaker: one-sided
• Application: turning (external and internal)
• Compatibility: depends on form, clearance, tolerance, fixation, size and thickness

FAQ

What holder types are compatible with this insert?
Compatibility is determined by insert form, clearance angle, tolerance class, fixation method, size and thickness; the DCMT11T304 T9225 fits standard ISO holders that accept 55° rhombic inserts with the specified thickness and hole style.

Is the grade suitable for interrupted cuts in steel?
Yes, the T9225 CVD-coated carbide grade is formulated for robust, universal performance in medium to heavy steel turning and copes well with lightly interrupted cuts.

How does the 0.4 mm corner radius affect performance?
A 0.4 mm corner radius offers a compromise between edge strength and surface finish, improving edge robustness under higher loads while maintaining acceptable surface integrity.

Can this insert be used for internal turning?
The rhombic shape and chip control features make the insert suitable for both external and internal turning, provided the toolholder offers the required clearance and rigidity.

What advantage does the countersunk hole provide?
The cylindrical hole with a single-sided countersink (40°–60°) secures consistent clamping and helps align the insert in the pocket, reducing the likelihood of movement under load and improving repeatability.

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.