CNMG 120412 T9215 Wendeplatten - Tungaloy

Combine high wear resistance and fracture toughness with ISO compatibility for consistent, productive turning; order the CNMG120412 T9215 Tungaloy insert via Metav Werkzeuge or consult our specialists for process recommendations.

CNMG120412 T9215 CNMG 120412 — Tungaloy indexable turning insert, CVD-coated carbide, 80° rhombic

CNMG120412 T9215 is an ISO-standard indexable insert designed for external and internal turning in medium steels, offering a robust geometry and a CVD-coated carbide grade for reliable, high-productivity machining.

• CNMG120412 insert, 80° rhombic geometry
• CVD-coated carbide grade T9215 for medium steel
• 0° clearance with 1.2 mm corner radius
• Double-sided chipbreaker, with cylindrical hole

Consistent wear resistance for productive turning

The CVD-coated carbide composition and T9215 grade combine wear resistance with breakage protection, making this insert well suited to medium steel machining where both tool life and process reliability matter. The cutting geometry supports continuous to lightly interrupted cuts, which helps to maintain a stable metal-removal rate and predictable tool-change intervals. By favouring an insert that balances toughness and hardness, workshops achieve fewer unplanned stoppages and more consistent component quality.

Secure fit and predictable clamping

Compatibility with toolholders depends on form, clearance angle, tolerance class, clamping method, size and thickness. This rhombic insert features an 80° geometry, 0° clearance and a 1.2 mm corner radius, with a 4.76 mm plate thickness and a size designation of 12; the insert is supplied with a cylindrical locating hole to match standard carrier screws and clamps. These measurable parameters make it straightforward to select a matching holder, ensuring repeatable seating, correct rake/lead angles and reliable edge support during turning operations.

Fewer interventions, higher throughput

Designed as a double-sided indexable part, the insert delivers two usable cutting edges per seat, reducing tool changes and cutter inventory. The combination of the CVD coating and the carbide substrate reduces flank and crater wear, supporting longer uninterrupted runs and more consistent surface finish. For production environments that prioritise throughput, this means lower tooling cost per part and less downtime for regrinding or replacement—practical benefits that translate directly into improved cycle reliability.

Application guidance for secure results

Use this insert for external and internal turning of medium-steel components, selecting the chipbreaker and grade to match part stability and cutting conditions. The cutting system comprises the insert, a suitable external holder or boring bar, a support/locking set and replacement screws; ensuring the correct holder geometry and clamping torque is applied will preserve edge life. If process stability or material mix is complex, targeted testing with the specified grade will identify the optimal cutting parameters and feed/speed window, delivering predictable performance and surface quality.

Contact Metav Werkzeuge today for tailored application advice on Tungaloy indexable inserts and to secure the correct CNMG120412 T9215 configuration for reliable turning results

Technical Data

• Article number: 6772185
• Manufacturer SKU: TUN6772185
• Stock SKU: 6772185-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Designation: CNMG120412

Facts

• Corner radius: 1.2 mm
• Clearance angle: 0°
• Insert angle/shape: 80°, rhombic
• Plate thickness: 4.76 mm
• Size designation: 12

Special features

• Material: carbide (cemented carbide)
• Coating: CVD-coated
• Grade: T9215
• Chipbreaker: double-sided
• Hole style: cylindrical hole
• Typical applications: external and internal turning of medium steel
• System components: insert, holder/boring bar, clamp set, screws

FAQ

What materials is this insert intended for?
The CNMG120412 T9215 insert from Tungaloy is formulated for medium-steel machining; the CVD-coated carbide substrate and the T9215 grade offer a balance of wear resistance and toughness for these materials.

How does the geometry affect performance?
The 80° rhombic shape with 0° clearance and a 1.2 mm corner radius provides stable edge support for turning operations, improving surface finish and reducing the risk of edge chipping during continuous or slightly interrupted cuts.

Can this insert be used both externally and internally?
Yes; the insert is suitable for external and internal turning when paired with the correct external holder or boring bar and the appropriate clamping system.

How many cutting edges are available per insert?
The insert is double-sided with two usable cutting edges, which reduces tool changes and contributes to higher productivity compared with single-edged alternatives.

What is the manufacturer article number and SKU for ordering?
The manufacturer article number is 6772185 and the manufacturer SKU is TUN6772185 for the CNMG120412 T9215 indexable insert.

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.