SNMG 120404 T6215 Wendeplatten - Tungaloy

Benefit from the combination of a CVD-coated carbide grade (T6215) and a double-sided chipbreaker for efficient, repeatable turning of stainless steels; order the insert directly via Metav Werkzeuge or consult the technical advisors for selection and mounting.

SNMG 120404 T6215 — Tungaloy indexable turning insert for turning, CVD-coated carbide, 90° square

A SNMG 120404 T6215 indexable insert engineered for external and internal turning, optimised for machining stainless steels under stable to lightly interrupted conditions.

• CVD-coated carbide grade T6215
• Designed for turning stainless steels
• Double-sided chipbreaker for stable chips
• ISO square insert, 12 mm size, 90° geometry

Consistent performance for stainless steel turning

The CVD-coated T6215 grade delivers a combination of wear resistance and thermal stability suited to machining stainless steels under steady cutting regimes. The coating reduces adhesion and flank wear, which helps maintain a predictable cutting edge and consistent surface finish over multiple indexings. With a 0.4 mm nose radius, the geometry balances strength and finish capability, enabling controlled feeds for dimensionally accurate components without sacrificing tool life.

Predictable fit and secure clamping for fast tool changes

ISO standardisation of the insert geometry ensures compatibility with matching toolholders; fit is determined by form, clearance, tolerance class, fixation method, size and thickness. The square, 90° configuration simplifies toolpath planning for shoulder and external turning operations while the cylindrical hole provides secure seating and repeatable clamping. This compatibility reduces setup time and supports a stable process window across serial production runs.

Improved process stability and economical machining

A double-sided chipbreaker provides reliable chip formation and evacuation, reducing the risk of built-up edge and improving surface quality. Being indexable on multiple edges lowers tooling cost per cutting edge and shortens machine downtime for insert changes. The robust carbide substrate combined with the CVD finish contributes to longer intervals between regrinds, supporting higher uptime and better overall equipment utilisation.

Coating and substrate explained for practical selection

The insert’s substrate is cemented carbide, the standard choice for a broad range of turning tasks due to high hardness and toughness. The CVD coating forms a hard outer layer that resists abrasion and thermal degradation; in the T6215 grade this is tuned for adhesion resistance, which is critical when machining stainless alloys prone to work hardening. When lighter interruptions or very aggressive interruptions are expected, select a grade or geometry optimised for those specific conditions to maintain consistent performance.

For expert selection and immediate supply of the Tungaloy SNMG 120404 T6215 insert, contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930 to confirm holder compatibility and optimal grade matching.

Technical Data

• Article number: 6944739
• Manufacturer SKU: TUN6944739
• Manufacturer: Tungaloy
• Model series: ISO turning indexable inserts
• Designation: SNMG120404
• Grade/coating: T6215 (CVD-coated carbide)

Core specifications

• Inscribed circle / size: 12 mm
• Thickness: 4.76 mm
• Corner angle: 90°
• Clearance angle: 0°
• Nose radius: 0.4 mm
• Hole: with hole
• Hole style: cylindrical
• Shape: square
• Chipbreaker: double-sided

Materials & features

• Material: cemented carbide
• Coating type: CVD
• Typical application: external and internal turning
• Suitability: machining stainless steels under stable to lightly interrupted conditions
• System components: ISO insert, matching external holder or boring bar, shim/clamp set and replacement screws

FAQ

What materials is this insert best suited to machine?
The SNMG 120404 T6215 insert is optimised for machining stainless steels, offering adhesion resistance and wear control suited to these alloys under stable and lightly interrupted conditions.

Which toolholders are compatible with this insert?
Compatibility is determined by the SNMG 120404 form and ISO geometry; the insert requires a matching ISO external holder or boring bar that accommodates a 12 mm square, 4.76 mm thick insert with a cylindrical hole.

Is this grade suitable for interrupted cuts?
The T6215 grade is intended for stable to lightly interrupted cutting; for heavy interruptions a more impact-resistant grade or different geometry should be considered.

How does the chipbreaker improve machining?
The double-sided chipbreaker promotes controlled chip formation and evacuation, lowering the risk of built-up edge and improving surface finish and process stability during continuous turning operations.

What components are needed to mount the insert?
Mounting requires a compatible ISO holder or boring bar, a matching shim/clamp set and replacement screws as part of the standard system assembly

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.