CNMG 120412 T9225 Wendeplatten - Tungaloy

Take advantage of the combination of robust CVD-coated carbide, reliable chip control and ISO compatibility for steady production results; order directly via Metav Werkzeuge or consult our advisers for selection and holder compatibility.

CNMG120412 T9225 turning indexable insert — CVD-coated carbide, 80° rhombic, Tungaloy

A CNMG120412 T9225 indexable insert designed for medium to heavy steel turning, offering robust toughness and consistent chip control in interrupted or variable cutting conditions

• CVD-coated carbide grade T9225
• Robust universal grade for medium to heavy steel
• 80° rhombic insert, 1.2 mm corner radius
• Double-sided, cylindrical hole, 4.76 mm thick

Reliable performance for medium-to-heavy steel turning

The insert is manufactured in a CVD-coated carbide grade (T9225) developed to combine toughness with wear resistance. This balance reduces edge chipping during intermittent cuts and under variable engagement, which results in more predictable tool life and fewer unplanned tool changes. For production environments that demand repeatable results, the ISO-compliant geometry ensures that the insert positions and seats correctly in standard holders, contributing to steady cycle times and reduced setup effort.

Improved chip control and surface consistency

A centrally important benefit is the insert’s double-sided chipbreaker geometry, which promotes stable chip formation across a range of feed rates and depths of cut. Stable chip control minimises workpiece smearing and helps achieve a consistent surface finish on steel components. For operators less familiar with insert technology, the term chipbreaker simply denotes the small profile features that split and control chips to avoid long, tangled swarf and to protect both the tool and the part.

Straightforward mounting and secure clamping

The rhombic 80° shape and the cylindrical hole facilitate secure, repeatable clamping in compatible external holders or boring bars. Because holder compatibility depends on form, clearance angle, tolerance class, fastening method, size and thickness, using an ISO-designated insert such as this reduces the risk of mismatches and simplifies procurement of spare parts. The insert’s 4.76 mm thickness and standard dimensions make it suitable for many common external and internal turning holders used in general workshop and production applications.

Durable edge geometry that lowers total cost of use

With a 1.2 mm corner radius and the robust grade choice, the insert tolerates higher mechanical loads without compromising the cutting edge. The result is fewer indexings and replacements over a production run, which improves overall tool consumption and uptime. For operations seeking a pragmatic balance between performance and economy, this grade is positioned as a universal solution for when changing engagement conditions demand added toughness rather than maximum hardness.

Contact Metav Werkzeuge for advice on integrating Tungaloy inserts into existing turning setups and to order the appropriate ISO holders and accessories

Technical Data

• Article number: 6796067
• Manufacturer SKU: TUN6796067
• Model series: ISO turning indexable inserts
• ISO designation: CNMG120412
• Grade: T9225
• Material: carbide

Core data

• Corner radius: 1.2 mm
• Thickness: 4.76 mm
• Insert size: 12
• Clearance angle: 0°
• Cutting edge angle: 80°

Special features

• CVD-coated carbide
• Robust universal grade for medium to heavy steel
• Double-sided chipbreaker
• Rhombic insert form
• Cylindrical hole (with hole)
• ISO-compliant geometry

FAQ

What materials is this insert intended for?
The CNMG120412 T9225 indexable insert is intended primarily for steel machining, providing robustness for medium to heavy turning applications.

Is the insert suitable for interrupted cuts?
Yes, the T9225 grade and the insert’s geometry are designed to withstand intermittent cutting conditions typical in interrupted turning.

How does the CVD coating benefit tool life?
The CVD-coated carbide layer on the insert increases wear resistance while the substrate retains toughness, together extending usable tool life under varied cutting conditions.

Can the insert be used in standard ISO holders?
The insert follows ISO designation CNMG120412, so compatibility with standard external holders is determined by holder form, clamping method and tolerance class.

What are the key dimensions to check when ordering spare inserts?
Check the ISO designation (CNMG120412), corner radius (1.2 mm), thickness (4.76 mm) and whether the insert has a cylindrical hole for your clamping system

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.