DCMT 11T308 T505 Wendeplatten - Tungaloy

High machining economy and reliable chip control are delivered by the CVD-coated carbide T505 grade combined with the ISO rhombic geometry; the 0.8 mm corner radius and one-sided chipbreaker provide stable cutting in interrupted turns. Order or request advice through Metav Werkzeuge to confirm holder compatibility and ensure seamless tool integration.

DCMT 11T308 T505 turning insert (ISO) — Tungaloy

The DCMT 11T308 T505 is an ISO-standard rhombic indexable turning insert designed for economical external and internal turning, optimised for cast iron applications.

• DCMT11T308 T505 by Tungaloy
• CVD-coated carbide for cast iron machining
• Rhombic insert with 0.8 mm corner radius
• Cylindrical hole with 40°–60° countersink

Consistent chip control and longer tool life for cast iron

The combination of CVD-coated surface technology and the T505 grade gives the insert reliable wear resistance and predictable performance when machining cast iron. The one-sided chipbreaker directs chips away from the cutting zone, reducing vibration and lowering the risk of built-up edge. These properties translate into fewer interruptions, longer tool life and more consistent surface finish, especially under varying feed rates and interrupted cuts. The result is reduced downtime and a more economical turning process.

ISO conformity and straightforward tool matching

Specified as an ISO rhombic insert, the designation supports straightforward replacement and stock management. The DCMT11T308 geometry follows ISO norms so compatibility with external holders and boring bars is determined by form, relief angle, tolerance class, fixing method, size and thickness. This conformity simplifies procurement and reduces the need for custom setups. When matched with the correct clamp set and screws, the system composition ensures secure clamping and repeatable positioning for stable production runs.

Geometry engineered for stability and surface quality

Key geometry features—0.8 mm corner radius, 7° relief and a 55° lead angle—balance edge strength and surface finish. A larger corner radius increases edge robustness and helps to smooth tool marks, while the relief angle prevents rubbing on the flank face during engagement. The insert thickness of 3.97 mm and the inscribed size of 11 mm give mechanical support in the pocket, improving resistance to bending and shock. These parameters make the insert well suited to interrupted turning and operations requiring reliable dimensional control.

Practical selection and application guidance

Select the chipbreaker and grade according to workpiece stability, type of cut and desired cutting speed: the T505 grade is optimised for economical machining of cast iron and performs best where stable clamping and appropriate cutting data are provided. The rhombic form with a central hole and a 40°–60° countersink ensures secure fastening and simple indexability. For tailored cutting data or holder recommendations, technical consultation is available to match the insert to machine rigidity and process requirements.

Contact Metav Werkzeuge for application support or to secure supply of Tungaloy turning inserts; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6793674
• Manufacturer SKU: TUN6793674
• Brand: Tungaloy
• Model series: ISO turning inserts
• Designation: DCMT11T308
• Material: carbide
• Coating/grade: T505 (CVD)
• Application: Turning

Facts

• Size: 11 mm
• Thickness: 3.97 mm
• Corner radius: 0.8 mm
• Relief angle: 7°
• Lead/approach angle: 55°
• Countersink angle: 40°–60°
• Hole: cylindrical

Special features

• Rhombic insert shape
• One-sided chipbreaker
• Cylindrical hole with one-side countersink
• Suitable for cast iron machining
• ISO-compatible geometry
• System: insert + external holder or boring bar + support/clamp set + replacement screws

FAQ

What materials is this insert designed for? The DCMT11T308 T505 turning insert is formulated for economical machining of cast iron and performs reliably where chip control and edge stability are required.

How does the T505 grade affect tool life? The T505 CVD-coated carbide grade improves wear resistance and maintains a stable cutting edge, extending service life under typical cast iron turning conditions.

Is the DCMT11T308 compatible with standard ISO holders? Yes, the ISO designation indicates compatibility with standard external holders and boring bars provided the holder matches form, relief angle, tolerance and size.

What is the purpose of the one-sided chipbreaker? The one-sided chipbreaker on this insert promotes controlled chip formation and evacuation, lowering vibration and improving surface finish during turning operations.

Which geometric values should be considered for setup? Important values include the 0.8 mm corner radius, 7° relief, 55° lead angle and the insert thickness of 3.97 mm; these determine edge strength, contact conditions and suitability for interrupted cuts.

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.