DCMT 11T304 T6215 Wendeplatten - Tungaloy

The combination of a CVD-coated carbide T6215 grade and a compact 55° rhombic geometry delivers reliable wear resistance and consistent cutting performance for stainless steel turning; choose compatible holders and the correct chipbreaker for best results and secure assembly via the ISO interface. Order or request advice through Metav Werkzeuge for quick clarification on holder matching and availability.

DCMT 11T304 T6215 DCMT turning insert by Tungaloy — CVD-coated carbide, 55° rhombic

DCMT 11T304 T6215 is an ISO-designation indexable turning insert intended for external and internal turning of stainless steels under stable to slightly interrupted conditions.

• CVD-coated carbide T6215 for wear resistance
• Designed for turning of stainless steels
• 55° rhombic geometry, 0.4 mm nose radius

Optimised for stainless steel turning and consistent tool life

The insert is manufactured in a CVD-coated carbide grade T6215, which combines a hard coating layer and a tough carbide substrate to slow flank and crater wear during prolonged cutting. This configuration is especially beneficial when machining stainless steels, where built-up edge and adhesion are common challenges. The coating reduces chemical affinity and improves abrasion resistance, resulting in fewer tool changes and more predictable process windows. Such material and coating choices support efficient throughput and lower tooling costs per part.

Geometry tuned for surface finish and cutting stability

The 55° rhombic geometry and the 0.4 mm nose radius balance strength and finish: the relatively small nose radius maintains edge robustness in interrupted cuts while enabling acceptable surface quality in finishing passes. A 7° clearance angle helps prevent rubbing and reduces cutting forces at the flank, which stabilises the cut and helps preserve dimensional accuracy. In practice, this geometry is suitable for a range of feeds and depths of cut; choose slightly reduced depths or stabilised clamping when machining thin-walled components to avoid vibration.

ISO compatibility and secure mounting for rapid tool changes

Produced to the ISO designation, the insert fits holders that match form, clearance, tolerance class, fixing method, size and thickness. The plate is size 11 with a 3.97 mm thickness and a cylindrical hole with a single-sided countersink (40°–60°) for positive and repeatable seating. These features enable quick replacement, repeatable positioning and consistent chip formation with minimal set-up time. Keeping a matched set of inserts and holders reduces downtime and supports lean inventory management.

Chip control and application guidance for stable results

This variant features a single-sided chipbreaker engineered for stainless steels under steady or lightly interrupted conditions; the chipformer helps curl and evacuate chips to avoid re-cutting and tool edge damage. The insert suits both external and internal turning operations when installed in a compatible holder and when machining stability is ensured. For specific machining parameters and holder recommendations, assistance is available to align cutting speed, feed and depth of cut with material grade and component geometry.

Contact Metav Werkzeuge for tailored advice on holder compatibility and delivery of Tungaloy DCMT 11T304 T6215 inserts — technical consultants are available via info@metav-werkzeuge.com or by phone at +49 2822 7131930

Technical data

• Article number: 6876438
• SKU: 6876438-Tungaloy
• Manufacturer SKU: TUN6876438

Facts

• Nose radius: 0.4 mm
• Insert angle: 55°
• Clearance angle: 7°
• Thickness: 3.97 mm
• Plate size: 11

Special features

• CVD-coated carbide (T6215)
• Rhombic insert shape (DCMT)
• With cylindrical hole + single-sided countersink (40°–60°)
• Single-sided chipbreaker
• ISO designation DCMT11T304
• Application: turning of stainless steels under stable to slightly interrupted conditions

FAQ

What materials is this insert intended for?
The DCMT 11T304 T6215 insert from Tungaloy is designed primarily for machining stainless steels, offering controlled wear behaviour and reduced tendency for built-up edge in those alloys.

What does the T6215 grade provide compared with other grades?
Grade T6215 is a CVD-coated carbide formulation that emphasises abrasion resistance and chemical stability at the cutting edge, which makes the insert suitable for longer tool life when turning stainless steels under stable cutting conditions.

How does the 0.4 mm nose radius affect machining results?
A 0.4 mm nose radius provides a compromise between edge strength and surface finish: it improves edge durability in interrupted cuts while still permitting reasonable surface quality at typical finishing feeds for turning.

Which holder features are required for secure mounting?
Secure mounting requires a holder that matches the ISO form and dimensions for DCMT11T304, accepts the cylindrical hole with single-sided countersink, and provides correct clamping pressure and tolerance class for repeatable seating.

Can the insert be used for internal turning as well as external turning?
Yes — the DCMT 11T304 T6215 insert can be used for both external and internal turning provided the chosen holder and setup ensure adequate rigidity and chip evacuation for the specific operation.

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.