SNMA 120412 T5125 Wendeplatten - Tungaloy

Take advantage of the combination of a CVD-coated carbide grade and ISO compatibility for reliable turning in less stable conditions; the insert’s square form and 1.2 mm corner radius deliver consistent edge life and predictable results. Order the insert directly via Metav Werkzeuge or ask the consultants for application-specific advice.

SNMA120412 T5125 – Turning insert (ISO SNMA 120412) by Tungaloy

The SNMA120412 T5125 is a square ISO turning insert for external and internal turning, designed as a tougher CVD-coated carbide grade for cast iron applications and interrupted cuts.

• CVD-coated carbide grade T5125
• Optimised for cast iron in interrupted cuts
• Square ISO SNMA 120412 with 1.2 mm radius
• Cylindrical hole; 0° clearance; 4.76 mm thickness

Robust cutting performance for interrupted turning

The insert is furnished in a CVD coating on a carbide substrate, a combination that enhances wear resistance while retaining toughness under variable cutting conditions. This material pairing makes the insert especially suitable for machining cast iron where interrupted cuts or less stable setups would otherwise accelerate flank wear. The absence of an integrated chipbreaker means the insert performs best when paired with a matching toolholder or chipformer chosen for the workpiece and cutting strategy, providing controlled flank wear and extended edge life without compromising cutting security.

Secure mounting and ISO-based compatibility for predictable set-up

Manufactured to the ISO SNMA 120412 specification, compatibility with the toolholder depends on form, clearance angle, tolerance class, fastening method, size and thickness. The square form and 1.2 mm corner radius offer a compromise between edge strength and surface finish, while the cylindrical hole ensures stable clamping with standard clamps or screws. The insert has a 0° clearance value, which requires an appropriate holder geometry to create the necessary relief; when assembled correctly, the system yields stable cutting forces and improved reproducibility across batches.

Practical application advice to boost productivity

Designed for both external and internal turning, this indexable insert supports efficient tool changeover and predictable tool life, reducing machine downtime and per-part costs. The indexable design permits reorienting the cutting edges to exploit remaining life, and the T5125 grade is formulated as a tougher option for rougher or interrupted conditions in cast iron. Since no chipbreaker is included, select the holder and cutting data to match the chip formation demands of the operation. Overall, the insert contributes to steady production runs and a lower total cost of ownership through consistent performance and straightforward replacement.

For machining cast iron under interrupted conditions, request the Tungaloy SNMA120412 T5125 insert from Metav Werkzeuge — contact our specialists at info@metav-werkzeuge.com or call +49 2822 7131930 for tailored recommendations and prompt supply

Technical Data

• Article number: 6850268
• Manufacturer SKU: TUN6850268
• Manufacturer article number: 6850268
• Model series: ISO turning inserts
• Material: carbide
• Grade/coating: T5125 (CVD-coated)

Numbers / Core technical data

• Corner radius: 1.2 mm
• Thickness: 4.76 mm
• Size: 12 mm
• Clearance angle: 0°
• Included angle: 90°

Special features

• Square form
• Cylindrical hole
• No chipbreaker
• CVD-coated carbide grade T5125
• Suited for cast iron in interrupted cuts
• ISO designation: SNMA120412

FAQ

What materials is this insert intended for?
The insert is formulated in the T5125 CVD-coated carbide grade and is particularly suited for cast iron machining, especially under interrupted cutting conditions.

Is the SNMA120412 compatible with standard ISO toolholders?
Yes; the ISO SNMA 120412 designation indicates standard compatibility, though holder choice must match form, clearance angle and thickness for secure clamping.

Why is there no chipbreaker on this insert?
This insert is supplied without a chipbreaker, allowing the selection of holder geometry or separate chip control measures tailored to the machining task.

How does the 1.2 mm corner radius affect machining?
A 1.2 mm corner radius increases edge strength for interrupted cuts while delivering an acceptable surface finish, balancing robustness and form accuracy.

Which SKU identifies this product for ordering?
The product is listed under Manufacturer SKU TUN6850268 and article number 6850268 for straightforward ordering and inventory control.

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.