DNMA 110408 T515 Wendeplatten - Tungaloy

Take advantage of CVD-coated T515 carbide for economic, stable machining of cast iron combined with ISO compatibility for straightforward tool integration. The rhombic DNMA format with a 0.8 mm corner radius and cylindrical hole ensures robust clamping and repeatable results. Order directly via Metav Werkzeuge or consult our specialists for application-specific advice.

DNMA 110408 T515 — ISO indexable insert for turning (Tungaloy)

A DNMA110408 T515 ISO-format, rhombic indexable insert engineered for efficient external and internal turning, optimised for cast-iron machining.

• ISO DNMA 110408 format for standard holders
• CVD-coated carbide T515 for cast iron machining
• 0.8 mm corner radius for stable cutting
• Cylindrical hole, 55° included angle

Economical, reliable cast-iron turning

The CVD-coated T515 carbide substrate offers a balance of wear resistance and cutting-edge stability that supports cost-effective batch production. For cast iron applications, this grade is selected to maintain tool life while permitting moderate cutting speeds; the result is fewer insert changes and more consistent cycle times. The formulation addresses common industrial demands for predictable tool behaviour and stable chip formation, which reduces rework and improves overall process economy.

Dependable holder compatibility and secure clamping

Compatibility with the holder depends on shape, clearance angle, tolerance class, fastening method, size and thickness. The DNMA form with a 55° included angle and 0° clearance must be matched to an appropriate external holder or boring bar; correct selection ensures precise seating and repeatable indexability. The rhombic geometry and cylindrical hole facilitate positive clamping in standard DNMA systems, while the 4.76 mm plate thickness and 11 mm size maintain mechanical stiffness for reliable metal removal in both external and internal turning.

What the CVD coating contributes to performance

Chemical vapour deposition (CVD) applies a thin, hard layer that improves abrasion resistance and thermal stability during cutting. For this insert, the CVD layer reduces flank wear under typical cast-iron conditions and helps maintain a stable cutting edge during interrupted cuts or varying stability scenarios. Selecting a chipbreaker or an alternative grade should be guided by the workpiece material, cutting conditions and machine rigidity, as this insert is supplied without a chipbreaker, allowing flexibility in holder-based chip control strategies.

Application guidance and system setup

Intended for external and internal turning, the insert performs best when integrated into a complete system: ISO insert, matching external holder or boring bar, a shim/clamp set and correctly sized replacement screws. The 0.8 mm corner radius provides a compromise between edge strength and surface finish; it supports heavier cuts while still enabling acceptable part quality. For interrupted cuts or unstable setups, choosing a more robust clamping arrangement and conservative parameters will extend insert life and secure process reliability.

For application-specific recommendations on Tungaloy CVD-coated inserts and to order DNMA 110408 T515 through Metav Werkzeuge, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for tailored advice and fast delivery.

Technical data

• Article number: 6760161
• Our SKU: 6760161-Tungaloy
• Manufacturer SKU: TUN6760161
• Model series: ISO indexable turning inserts
• Material: carbide
• Grade: T515
• Insert designation: DNMA110408

Facts

• Size: 11 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Clearance angle: 0°
• Included angle: 55°
• Hole: with cylindrical hole
• Shape: rhombic

Special features

• CVD-coated carbide
• Suited for cast iron machining
• No chipbreaker
• ISO-normed insert compatible with DNMA holders
• System requires holder, shim/clamp and screws

FAQ

What materials is this insert designed for?
The DNMA110408 T515 insert is designed primarily for the economic machining of cast iron, leveraging the T515 grade and CVD coating for abrasion resistance and stable cutting.

Can this insert be used for internal turning as well as external turning?
Yes; the DNMA110408 format and rhombic geometry permit both external and internal turning when paired with a suitable holder or boring bar.

How is holder compatibility determined for this insert?
Compatibility is determined by the insert form, clearance angle, tolerance class, fastening method, size and thickness; matching those parameters ensures secure clamping and repeatable performance.

What is the corner radius and how does it affect performance?
The corner radius is 0.8 mm, offering increased edge strength for heavier cuts while balancing surface finish requirements.

Does this insert include a chipbreaker?
This particular variant is supplied without a chipbreaker, enabling the selection of holder-based chip control or alternative chipbreaker options as required.

What does the T515 grade mean in practical terms?
T515 denotes a CVD-coated carbide grade formulated to provide good wear resistance and consistent performance when machining cast iron under typical industrial conditions.

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.