SNMG 120412 T505 Wendeplatten - Tungaloy

Take advantage of the combination of CVD‑coated carbide, a 1.2 mm corner radius and a double‑sided chipbreaker for dependable, economical turning operations; order the SNMG120412 T505 indexable insert directly via Metav Werkzeuge or consult the Metav Werkzeuge team for compatibility and process advice.

SNMG120412 T505 indexable turning insert — Tungaloy (ISO insert for turning)

SNMG120412 T505 is an ISO‑standard indexable insert for external and internal turning, designed for economical machining of cast iron with a double‑sided chipbreaker and cylindrical hole for secure clamping

• CVD‑coated carbide for economical machining
• Optimised for cast iron turning
• Double‑sided chipbreaker, with cylindrical hole
• Square SNMG 12×4.76 mm, 1.2 mm corner radius

Reliable performance for cast iron turning

The insert is manufactured from CVD‑coated carbide in the T505 grade, which provides improved abrasion and heat resistance compared with uncoated carbide. This material combination is aimed at economical machining of cast iron, where stable cutting edges and predictable wear are priorities. The coating is applied as a thin, hard layer that reduces flank wear and helps maintain cutting geometry over longer tool life, so machining cycles remain consistent and machine downtime is reduced. Compatibility with the toolholder is dictated by shape, relief angle, tolerance class, fastening method, size and thickness, which ensures the insert fits standard ISO systems.

Consistent chip control for higher productivity

A double‑sided chipbreaker is integrated to promote reliable chip control, particularly during continuous turning operations in cast iron. By controlling chip formation and evacuation, the chipbreaker contributes to uninterrupted tool paths and safer handling at the machine. The square plate geometry and the cylindrical hole support secure clamping in the seat; this mechanical stability is essential for keeping the cutting edge in the correct position, which in turn supports repeatable surface finish and dimensional accuracy. For many workshop scenarios, controlled chips reduce manual rework and speed up post‑processing.

Easy integration into ISO tool systems and straightforward assembly

The insert follows ISO dimensions and is intended for use as part of a system: ISO indexable insert, a matching external holder or boring bar, a support/clamp set and replacement screws. Because compatibility depends on several geometric and tolerance parameters, the insert is often selected in combination with the appropriate holder design and tolerance class to ensure correct seating and clamping force. The standardised form factor simplifies procurement and inventory management: identical plates can be used across multiple holders where the ISO interface is consistent, lowering the complexity of tooling stock.

Practical selection guidance for stable machining results

Key geometry values influence cutting behaviour: the 1.2 mm corner radius increases edge strength and supports stable roughing cuts, while the 0° relief angle and the square plate form give a 90° approach that is suitable for many facing and shoulder turning tasks. The plate thickness of 4.76 mm contributes to stiffness in the clamped assembly. When choosing the most suitable chipbreaker and grade, consider workpiece stability, the presence of interrupted cuts and the desired cutting speed; those factors govern surface quality and tool life. For complex setups or high‑precision requirements, consulting process data and holder compatibility is recommended to achieve optimal productivity.

Contact Metav Werkzeuge for tailored advice on Tungaloy SNMG120412 T505 indexable inserts — email info@metav-werkzeuge.com or call +49 2822 7131930 to confirm holder compatibility and place orders with Metav Werkzeuge

Technical data

• Article number: 6831349
• SKU: 6831349-Tungaloy
• Manufacturer SKU: TUN6831349
• Brand: Tungaloy
• Series: ISO indexable turning inserts
• Material: carbide

Core technical data

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 1.2 mm
• Relief angle: 0°
• Insert angle: 90°
• Hole: with cylindrical hole

Features and applications

• CVD‑coated carbide T505 grade
• Double‑sided chipbreaker
• Square SNMG plate form
• ISO‑standard indexable insert for turning
• For external and internal turning
• Compatible with external holders and boring bars
• System: insert + holder + support/clamp set + spare screws
• Designed for economical machining of cast iron

FAQ

Is the insert suitable for machining cast iron?
Yes. The SNMG120412 T505 insert is specifically graded and coated for the economical machining of cast iron, delivering controlled wear and stable cutting performance.

Which holders will accept this SNMG insert?
As an ISO‑standard insert, compatibility is determined by form, relief angle, tolerance class, fastening method, size and thickness; matching external holders or boring bars that accept SNMG 12×4.76 mm plates are suitable.

What are the advantages of the T505 grade and the CVD coating?
The T505 CVD‑coated carbide provides improved abrasion resistance and heat protection, which helps preserve the cutting edge and extends productive tool life under typical cast iron turning conditions.

How does the 1.2 mm corner radius affect machining?
A 1.2 mm corner radius increases the strength of the cutting edge, improving resistance to edge chipping and enabling more stable roughing operations while still providing acceptable surface finish for many applications.

Can these inserts cope with interrupted cuts?
The double‑sided chipbreaker and robust T505 grade support moderate interrupted cutting, but selection should be based on workpiece stability and the intended cutting parameters; choose the chipbreaker and grade in line with machining conditions.

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.