CNMG 120412 T6215 Wendeplatten - Tungaloy

The combination of a CVD‑coated carbide grade and the ISO CNMG geometry delivers consistent edge life and reliable chip control for turning stainless steels; this supports steady production and fewer insert changes. Order the insert directly via Metav Werkzeuge or consult the technical team for specific application guidance.

CNMG120412 T6215 ISO turning insert — rhombic CNMG geometry, CVD‑coated carbide (Tungaloy)

CNMG120412 T6215 is an ISO‑standard rhombic turning insert intended for external and internal turning of stainless steels under stable to lightly interrupted conditions

• CVD-coated carbide T6215 for wear resistance
• ISO rhombic CNMG geometry, 80° cutting angle
• Double-sided chipbreaker for flexible use
• Cylindrical hole for secure clamping

Longer tool life through advanced coating and substrate

The CVD‑coated carbide substrate of this grade provides enhanced wear resistance during continuous cutting of stainless steels, extending tool life and reducing downtime. Chemical vapour deposition (CVD) applies a hard, uniform layer that tolerates the elevated temperatures typical for machining stainless materials; this means fewer insert changes and improved process economy. Selecting a grade optimised for the material and cutting conditions reduces flank and crater wear, which contributes directly to cost‑per‑part savings.

Consistent positioning and secure clamping for repeatable results

The ISO CNMG form and rhombic shape with an 80° approach angle support stable cutting forces and predictable chip flow, improving dimensional consistency on external and internal diameters. A cylindrical hole enables positive location and secure clamping in compatible holders; compatibility is governed by insert form, relief angle, tolerance class, fastening method, size and thickness. The double-sided chipbreaker permits economical use of both cutting edges, while the 4.76 mm plate thickness offers robust support against deflection in typical turning set‑ups.

Practical application advice for efficient turning of stainless steels

Suitable for both finishing and light roughing when matched to cutting data and coolant strategy, this insert performs best where stable cutting conditions can be achieved. For interrupted cuts or unstable set‑ups, choose a chipbreaker and cutting parameters that prioritise stability. The insert is part of a system comprising the ISO turning insert, a matching external holder or boring bar, and clamping components; correct assembly and verified seat geometry ensure reliable performance and consistent surface finish. For process optimisation, select feeds and speeds that balance tool life and productivity in line with machining strategy.

For demanding stainless steel turning rely on the Tungaloy CVD‑coated T6215 grade — contact Metav Werkzeuge for tailored selection support and ordering: info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6877356
• Manufacturer SKU: TUN6877356
• Our SKU: 6877356-Tungaloy
• Manufacturer article number: 6877356

Core data

• ISO designation: CNMG120412
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 1.2 mm
• Cutting angle: 80°
• Relief (free) angle: 0°

Special features

• Material: carbide (CVD‑coated)
• Grade: T6215
• Shape: rhombic (CNMG)
• Chipbreaker: double-sided
• Hole: with cylindrical hole
• Typical application: turning (external and internal)
• System: ISO turning insert compatible with corresponding holders, clamping sets and screws
• Intended for machining stainless steels under stable to lightly interrupted conditions

FAQ

Is this insert suitable for stainless steel turning?
Yes. The CNMG120412 T6215 Tungaloy insert is formulated for machining stainless steels, offering a CVD coating and carbide substrate tuned to resist the adhesive and abrasive wear mechanisms common with these alloys.

Can both sides of the insert be used?
Yes. The insert features a double‑sided chipbreaker, allowing the use of two cutting edges per index, which improves economy and reduces tooling consumption.

What holder compatibility checks are required?
Compatibility depends on form, relief (free) angle, tolerance class, fastening method, size and thickness. Ensure the holder accepts the ISO CNMG geometry and 12 mm size before mounting this Tungaloy insert.

Is the cylindrical hole necessary for clamping?
The cylindrical hole provides positive location and helps achieve consistent clamping, which is important for repeatable cutting performance and accurate positioning in the holder.

Which operations are recommended for this insert?
The insert is designed for external and internal turning, performing best under stable to lightly interrupted conditions; match chipbreaker and cutting data to the specific stainless steel grade and the desired surface finish.

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.