CNMG 120408 T515 Wendeplatten - Tungaloy

Take advantage of a CVD-coated cemented carbide grade engineered for efficient cast-iron turning combined with a stable, double-sided chipbreaker for consistent chip control; compatibility with standard ISO holders ensures easy integration into existing tool systems. Order via Metav Werkzeuge or contact our advisors for tailored holder and process recommendations.

CNMG120408 T515 — Turning insert, CVD-coated carbide (Tungaloy)

CNMG120408 T515 is an indexable insert designed for economical external and internal turning of cast iron, offering robust chip control and ISO CNMG compatibility for a wide range of holders and setups.

• ISO CNMG geometry
• CVD-coated cemented carbide T515
• Double-sided chipbreaker
• Cylindrical hole for secure mounting

Economical machining of cast iron with stable chip control

The CVD-coated cemented carbide grade delivers a balance of wear resistance and edge toughness suited to the economic machining of cast iron. The supplied T515 grade has been developed for productive material removal where stable chip formation and consistent tool life are priorities. The insert’s double-sided chipbreaker contributes to controlled chip flow and reduces the risk of cutter clogging during interrupted cuts, which in turn supports steady cycle times and predictable tool-change intervals. This translates into measurable productivity benefits on repetitive turning operations.

Precise fit and secure clamping for reliable results

The insert follows the ISO CNMG form with a rhombic shape and an 80° included angle, giving a favourable approach geometry for both external and internal turning. A cylindrical hole and the standard dimensions (12 mm size, 4.76 mm thickness, corner radius 0.8 mm) ensure a consistent fit in compatible holders and boring bars. The specified 0° relief angle is a design characteristic that should be matched to the chosen holder geometry and tolerance class; compatibility is determined by shape, relief angle, tolerance class, fastening, size and thickness. For a complete cutting system, pair the insert with an appropriate holder, a shim/clamp set and replacement screws to guarantee repeatable clamping and stable cutting performance.

Integrating the insert for higher throughput and predictable results

When integrated into a correctly set-up clamping system, the insert supports improved cycle time and reduced rework through stable chip formation and reliable wear behaviour. The CVD coating enhances thermal resistance at the cutting edge, allowing consistent performance at moderate cutting speeds typical for grey and nodular cast irons. Selecting the correct chipbreaker and grade in relation to workpiece stability and cut depth minimises vibration and surface irregularities, leading to better first-pass quality and fewer secondary operations. The insert’s ISO conformity simplifies tool management and inventory control across multi-machine shops.

Contact Metav Werkzeuge today to discuss the Tungaloy CNMG120408 T515 for cast-iron turning and to determine the ideal holder and chipbreaker combination for the intended application – eMail: info@metav-werkzeuge.com | Tel: +49 2822 7131930

Technical data

• Article number: 6754110
• Manufacturer SKU: TUN6754110
• SKU: 6754110-Tungaloy
• Brand: Tungaloy
• Model series: ISO turning inserts

Facts

• Insert designation: CNMG120408
• Grade / sort: T515
• Material: cemented carbide
• Coating: CVD
• Size: 12
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Included angle: 80°
• Relief angle: 0°
• Hole style: cylindrical hole
• Chipbreaker: double-sided

Special features

• Application: turning (external and internal)
• ISO CNMG geometry, rhombic form
• Compatibility criteria: shape, relief angle, tolerance class, fastening, size, thickness
• System components: matching outer holder or boring bar, shim/clamp set, replacement screws
• Designed for economical machining of cast iron with controlled chip flow

FAQ

What materials is this insert suited for? This CNMG120408 T515 insert is designed primarily for machining cast iron; the CVD-coated cemented carbide grade supports economic turning of grey and nodular cast irons.

Is the insert single- or double-sided, and how many cutting edges are available? The insert features a double-sided chipbreaker, which provides two usable cutting edges per indexable side, facilitating economical use and straightforward indexing.

How is the insert mounted in a toolholder? Mounting requires a compatible ISO CNMG holder or boring bar; the cylindrical hole and standard thickness ensure secure clamping when used with the correct shim/clamp set and fastening screws.

Can the insert be used for interrupted cuts or unstable setups? The double-sided chipbreaker and the T515 grade improve chip control and edge robustness, making the insert suitable for applications with some intermittency; selection of the correct chipbreaker and a stable holder is recommended.

What determines whether this insert will fit an existing holder? Compatibility depends on the insert form (CNMG), relief angle, tolerance class, fastening method, size (12) and thickness (4.76 mm); check holder specifications against these values before fitting.

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.