SNMG 120412 T5125 Wendeplatten - Tungaloy

Take advantage of the combination of a CVD-coated carbide grade T5125, a 1.2 mm corner radius and ISO compatibility for reliable interrupted turning of cast iron; order the insert directly via Metav Werkzeuge or consult the technical team for application guidance.

SNMG120412 T5125 — ISO turning insert for interrupted cast-iron turning by Tungaloy

SNMG120412 T5125 is an ISO‑normed, square turning insert designed for external and internal turning; the geometry and coating suit interrupted cuts and less stable set‑ups.

• CVD-coated carbide grade T5125
• Optimised for interrupted cuts in cast iron
• Double-sided chipbreaker for versatile use
• ISO SNMG 120412, 1.2 mm corner radius

Consistent cutting performance under interrupted conditions

The insert delivers stable chip control and wear resistance through its CVD-coated carbide grade, engineered for tougher cutting conditions. The combination of coating and substrate promotes predictable flank wear and helps maintain dimensional stability during stops and starts typical of interrupted turning. This results in more consistent component tolerances and fewer in-process rejects, an advantage in batch production where reproducibility matters.

Secure clamping and universal ISO compatibility

The square geometry with a cylindrical hole and specified tolerances ensures compatibility with standard ISO holders; the fit is determined by form, free angle, tolerance class, fastening and plate thickness. The zero-degree free angle and standard interface simplify insert changes and reduce set-up time. Clear guidance on holder selection and torque settings supports faster changeovers and reduces the risk of mounting errors that can shorten tool life.

Practical benefits for cast-iron turning and productivity

Chosen for cast-iron applications, this grade is tougher to cope with vibration and variable rigidity, offering improved edge stability in interrupted cuts. The 1.2 mm corner radius provides a balance between edge strength and radial engagement, helping to extend tool life while maintaining a good surface finish. Using a double-sided chipbreaker permits economical two‑edge use before indexing, lowering tooling costs per part and supporting continuous, productive machining cycles.

Contact Metav Werkzeuge for tailored advice on Tungaloy inserts and specify SNMG120412 T5125 for cast-iron interrupted turning or request application recommendations from our specialists

Technical data

• Article number: 6850265
• Manufacturer SKU: TUN6850265
• Model series: ISO-Drehwendeschneidplatten
• Material: Hartmetall
• Grade: T5125

Facts

• Corner radius: 1.2 mm
• Plate thickness: 4.76 mm
• Plate size: 12 mm
• Insert angle: 90°
• Free angle: 0°
• Hole: with hole (cylindrical)

Special features

• CVD-coated carbide
• Square plate form
• Double-sided chipbreaker
• Suitable for turning (external and internal)
• Designed for interrupted cuts in cast iron
• Compatibility depends on holder form, tolerance and fastening

FAQ

What materials is this insert intended for?
The SNMG120412 T5125 insert from Tungaloy is designed primarily for machining cast iron, especially under interrupted cutting conditions.

How does the T5125 grade improve process reliability?
The CVD-coated T5125 substrate offers enhanced edge stability and predictable wear behaviour, which improves repeatability and reduces scrap in demanding turning operations.

Is the insert compatible with standard ISO holders?
Compatibility is achieved via ISO dimensions; the SNMG120412 form, hole style and thickness match standard ISO holders when the holder’s form, clearance and tolerance class are observed.

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.