DCMT 11T304 AH905 Wendeplatten - Tungaloy

Benefit from the combination of a PVD-coated carbide grade AH905, a rhombic 55° geometry and a precise 0.4 mm corner radius for reliable machining and extended tool life; order the insert directly via Metav Werkzeuge or consult the team for application advice.

DCMT 11T304 AH905 – ISO rhombic turning insert for external and internal turning, PVD-coated carbide by Tungaloy

The DCMT11T304 AH905 is an ISO-standard rhombic insert designed for precision external and internal turning, combining a sharp cutting edge with a wear- and fracture-resistant PVD coating for process-secure production.

• PVD-coated carbide AH905 grade
• Rhombic 55° geometry, 0.4 mm radius
• Single-sided chipbreaker for controlled chips
• Cylindrical hole with 40°–60° countersink

Predictable machining through a wear-resistant grade

The PVD-coated carbide in grade AH905 is engineered for consistent performance where a sharp, durable cutting edge and resistance to chipping are essential. The coating improves surface hardness and reduces adhesive wear, which leads to more stable cutting conditions and fewer interruptions for edge changes. For demanding turning cycles this results in a measurable increase in process reliability, with the insert delivering steady edge life under typical steels and alloyed materials used in production environments.

Secure seating and accurate geometry for repeatable results

The rhombic 55° geometry with a 0.4 mm corner radius and a relief angle of 7° ensures a predictable engagement with the workpiece and reliable clearance during feed motion. The ISO designation and standardised form mean that compatibility with holders depends on form, relief angle, tolerance class, fixing method, size and thickness; ensuring the correct matching holder and clamping components avoids runout and optimises surface finish. Features such as the cylindrical hole with a one-sided countersink (40°–60°) support secure clamping and accurate indexing when exchanging edges.

Efficient application planning and system assembly

Intended for both external and internal turning, the insert works best when the single-sided chipbreaker is selected to match material, machining strategy and rigidity. In practice, the cutting system comprises the ISO insert, a suitable external holder or boring bar, a shim/clamping set and replacement screws — a configuration that supports fast insert changes and minimal downtime. Choosing the appropriate chipbreaker and cutter grade reduces cycle time and contributes to better cost-efficiency over the tool life, helping to maintain throughput in series production.

Contact Metav Werkzeuge for availability, technical recommendations and order handling — eMail: info@metav-werkzeuge.com or call +49 2822 7131930

Product data

• Article number: 6879334
• SKU: 6879334-Tungaloy
• Manufacturer SKU: TUN6879334
• Manufacturer: Tungaloy

Core data

• ISO designation: DCMT11T304
• Size: 11 mm
• Thickness: 3.97 mm
• Corner radius: 0.4 mm
• Relief angle: 7°
• Cutting angle: 55°

Special features

• PVD-coated carbide AH905
• Rhombic plate form
• With hole
• Cylindrical hole + one-sided countersink (40°–60°)
• Single-sided chipbreaker
• Suitable for external and internal turning
• ISO-standard insert
• System components: insert, holder/boring bar, shim/clamping set, replacement screws

FAQ

Which materials can be machined with this insert?
The DCMT11T304 AH905 Tungaloy insert is suitable for a broad range of materials; the PVD-coated carbide grade offers good performance on steels and many alloyed materials when combined with an appropriate cutting data and chipbreaker.

What advantages does the AH905 grade bring to turning operations?
AH905 provides increased wear resistance and fracture toughness; the PVD coating enhances surface hardness and adhesion resistance, which together improve edge life and process security for turning operations.

How does the single-sided chipbreaker affect chip control?
A single-sided chipbreaker promotes predictable chip formation for many turning tasks; selecting the correct chipbreaker profile and matching it to material and rigidity yields cleaner chips and reduced risk of surface damage.

How is compatibility with holders ensured?
Compatibility is determined by plate form, relief angle, tolerance class, fixing method, size and thickness; the ISO designation DCMT11T304 helps identify matching external holders or boring bars and the necessary clamping components.

Is the insert indexed for multiple cutting edges?
The rhombic ISO-design insert provides indexed cutting edges; correct clamping with the specified hole and countersink geometry ensures reliable indexing and repeatable positioning for edge changes.

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.