DCMT 11T304 AH905 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD‑coated carbide AH905 grade and a rhombic DCMT 55° geometry to secure consistent cutting performance and process reliability in turning operations. The compact 3.97 mm thickness and 0.4 mm corner radius provide stability and versatility for common external and internal turning tasks. Order supply or request tailored advice via Metav Werkzeuge for immediate availability and application guidance.

DCMT 11T304 AH905 indexable turning insert — Tungaloy for turning

The DCMT11T304 AH905 is an ISO‑standard rhombic indexable insert for external and internal turning, designed to deliver a sharp, wear‑resistant cutting edge and dependable process security.

• PVD‑coated carbide AH905
• Rhombic DCMT 55° geometry
• 0.4 mm corner radius
• Single‑sided chipbreaker, with hole

Consistent cutting performance and process security

The AH905 grade is a PVD‑coated carbide engineered to combine wear resistance with an edge geometry suited to stable metal removal. The result is predictable tool life and controlled flank wear, reducing unplanned interruptions. Paired with the rhombic 55° insert geometry, the design balances cutting forces and provides accessible cutting edges for a range of turning set‑ups. This delivers measurable productivity benefits: fewer insert changes and more consistent part quality during serial machining.

Clear guidance on compatibility and clamping

As an ISO‑standard insert, compatibility with holders depends on matching form, clearance angle, tolerance class, fastening method, size and thickness. The insert features a cylindrical centre hole with a single‑sided countersink (40°–60°) for secure clamping and reliable seat location. The 7° relief angle contributes to predictable cutting engagement, while the 3.97 mm thickness supports rigidity in light to medium‑duty turning. These measurable parameters simplify selection of a suitable external holder or boring bar.

Application scope and practical recommendations

Designed for general turning, the insert is suitable for both external and internal turning where a sharp cutting edge and process reliability are required. The single‑sided chipbreaker is matched to the grade to promote stable chip formation under appropriate cutting conditions. For best results, select the chipbreaker and cutting parameters according to workpiece material, machine stability and desired surface finish; the insert’s geometry and grade provide a robust baseline for common workshop and production applications.

Handling, economy and logistical advantages

A 0.4 mm corner radius offers a compromise between edge strength and finishing capability, enabling single‑insert versatility across multiple operations. The modest thickness of 3.97 mm contributes to a compact insert profile that is straightforward to seat and replace, helping to reduce changeover times. With its PVD coating the insert typically sustains edge integrity for longer periods, which can lower per‑part tooling costs and simplify inventory planning in production environments.

For Tungaloy quality in turning applications, contact Metav Werkzeuge for technical matching and immediate supply of DCMT11T304 AH905 inserts

Technical data

• Article number: 6879341
• SKU: 6879341‑Tungaloy
• Manufacturer SKU: TUN6879341
• Brand: Tungaloy
• Designation: DCMT11T304 AH905 indexable turning insert

Facts

• Insert size: 11 mm
• Thickness: 3.97 mm
• Corner radius: 0.4 mm
• Relief angle: 7°
• Included angle: 55°

Special features

• Material: carbide
• Coating / grade: PVD‑coated AH905
• Shape: rhombic (DCMT geometry)
• Centre hole: cylindrical hole + single‑sided countersink (40°–60°)
• Chipbreaker: single‑sided
• Application: turning (external and internal)
• ISO‑standard indexable insert

FAQ

What machining tasks is this insert best suited for?
The DCMT11T304 AH905 indexable insert is intended for general external and internal turning where a sharp, wear‑resistant edge and stable chip control are desired.

How does the AH905 grade affect tool life?
AH905’s PVD coating improves wear resistance and helps preserve the cutting edge, so the insert typically offers extended performance compared with uncoated grades under comparable conditions.

Which holders are compatible with this insert?
Compatibility depends on matching form, clearance angle, tolerance class, fastening and size; the insert’s cylindrical centre hole with countersink enables secure clamping in appropriately rated external holders and boring bars.

What does the 0.4 mm corner radius mean for finish and strength?
A 0.4 mm corner radius balances edge robustness with surface finish capability, making the insert versatile for turning operations that require moderate strength and acceptable surface quality.

Can this insert be used for fine finishing operations?
Yes, within the limits of its geometry and grade the insert can achieve good finishes; for demanding finishing applications, adjust feeds and speeds and consider a smaller corner radius if available.

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.