CNMG 190612 T515 Wendeplatten - Tungaloy

Take advantage of the combination of economical machining, robust wear resistance and straightforward holder compatibility to keep turning cycles productive and predictable; order the insert via Metav Werkzeuge or request advice from our technical consultants.

CNMG 190612 T515 – rhombic ISO turning insert for Drehen, Tungaloy

The CNMG190612 T515 is a CVD‑coated carbide ISO turning insert engineered for economical machining of cast iron in external and internal turning operations.

• CVD-coated carbide grade T515 for cast iron
• Rhombic CNMG 190612 geometry, 80° cutting edge
• Double-sided insert with 1.2 mm nose radius
• ISO compatibility: 6.35 mm thickness, cylindrical hole

Consistent economy for cast-iron turning

The combination of a CVD‑coated surface and a wear‑resistant carbide substrate provides durable cutting performance suited to high material removal rates on cast iron. The T515 grade is designed for economical production: it balances edge life and productivity so that fewer tool changes are required under stable cutting conditions. Where vibration or interrupted cuts occur, the choice of the appropriate chipbreaker and the correct grade helps maintain process stability and predictable tool lives. By favouring a grade optimised for the workpiece material and the intended feed/speed range, machining runs become more cost‑efficient without sacrificing surface quality.

Geometry engineered for accuracy and fit

The rhombic CNMG form with an 80° cutting edge and an inscribed circle of 19 mm gives a stable cutting geometry for a wide range of turning tasks. Key dimensions — 6.35 mm plate thickness, 0° clearance angle and the cylindrical hole — affect clamping and stiffness; correct matching to the toolholder ensures repeatable clamping and secure fixation. The 1.2 mm nose radius delivers a compromise between edge strength and surface finish, helping to produce consistent diameters and acceptable roughness on external and internal features. Compatibility with holders is determined by form, clearance angle, tolerance class, fastening method, size and thickness, so selecting a matching ISO holder is essential for optimal results.

Practical process advantages and application guidance

As a double‑sided insert, this CNMG version offers economical indexability: the reversible design doubles usable cutting edges per insert and reduces tooling costs per component. The contained system concept includes the ISO turning plate, a suitable external holder or boring bar, and the necessary clamping parts, which supports fast changeover and consistent clamping forces when maintained correctly. For best outcomes, pair the insert with a chipbreaker suited to the specific cast‑iron grade and with a machining strategy adapted to part stability; this approach improves chip control and extends effective cutting life while maintaining productivity.

For cost‑effective and process‑reliable cast‑iron turning with the Tungaloy CNMG190612 T515, contact Metav Werkzeuge to arrange supply or technical consultation via info@metav-werkzeuge.com or by phone at +49 2822 7131930.

Technical data

• Manufacturer item number: 6747808
• SKU: 6747808-Tungaloy
• Model series: ISO turning inserts
• Application: Turning

Dimensions / core data

• Inscribed circle: 19 mm
• Thickness: 6.35 mm
• Nose radius: 1.2 mm
• Clearance angle: 0°
• Wedge angle: 80°
• Hole: with cylindrical hole

Material / special features

• Material: carbide
• Coating: CVD
• Grade: T515
• Chipbreaker: double-sided
• Geometry: rhombic CNMG
• Compatibility: ISO turning holders (fit by form, clearance, tolerance, fastening, size, thickness)

FAQ

What materials is this insert optimised for?
The CNMG190612 T515 insert is optimised for economical machining of cast iron thanks to its T515 CVD‑coated carbide grade and the matching chipbreaker design.

Can the insert be used for both external and internal turning?
Yes, the rhombic CNMG geometry and the 1.2 mm nose radius allow use in both external and internal turning applications when paired with a suitable holder.

How does the double‑sided design affect tooling costs?
A double‑sided CNMG insert provides two usable edges per index, effectively reducing the cost per cutting edge and lowering overall tooling expenditure for the CNMG190612 T515.

What should be checked to ensure holder compatibility?
Compatibility is determined by form, clearance angle, tolerance class, fastening method, size and thickness; matching these dimensions ensures correct clamping and repeatable performance with the CNMG190612 T515.

Is the insert suitable for interrupted cuts?
Yes; the T515 grade and robust carbide substrate of the CNMG190612 T515 make it suitable for operations that include moderate interruption, provided the machining parameters and holder rigidity are appropriate.

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.