SNMG 120412 T9225 Wendeplatten - Tungaloy

Benefit from the combination of a CVD-coated carbide grade engineered for medium-to-heavy steel and a double-sided chipbreaker that promotes stable chip formation; the result is reliable, versatile performance in interrupted or varying cutting conditions — order directly via Metav Werkzeuge or consult the technical team for application support.

SNMG120412 T9225 — Turning insert (ISO SNMG) by Tungaloy

A SNMG120412 T9225 turning insert optimised for external and internal turning, offering a robust universal grade for changing engagement conditions and interrupted cuts.

• CVD-coated carbide for robust performance
• Universal T9225 grade for medium–heavy steel
• Double-sided chipbreaker for stable chip control
• ISO SNMG 120412, 12 mm square, 1.2 mm radius

Increased productivity through a robust universal grade

The T9225 grade is a CVD-coated carbide developed for productive steel machining where toughness and wear resistance must be balanced. In practical terms, this means fewer indexings and longer intervals between tool changes in mixed batches or semi-interrupted cuts. The CVD coating provides a wear-resistant surface layer that reduces flank wear at elevated temperatures, while the carbide substrate maintains edge integrity under variable loads. For shops seeking steady throughput, the combination of coating and substrate translates directly into improved uptime and predictable tool life.

Geometry engineered for process stability

The insert’s square plate design (ISO SNMG 120412) with a 1.2 mm corner radius and 0° relief angle contributes to stable cutting forces and consistent surface finish when the holder and workpiece are properly matched. The double-sided chipbreaker assists in breaking and evacuating chips across a range of feed rates, lowering the risk of built-up edge and workhardening. The presence of a cylindrical hole simplifies secure clamping in conventional indexable holders; however, compatibility is determined by holder form, tolerance class, fastening method, size and thickness, so matching to the intended clamping system is essential for repeatable results.

System setup and selection guidance

An effective cutting system comprises the indexable insert, a matching external holder or boring bar, and the appropriate shim/clamp set with replacement screws. The SNMG120412 T9225 insert is intended for use with ISO-standard holders sized for SNMG inserts; selecting the correct chipbreaker and grade should be based on the workpiece material, cutting parameters and machine rigidity. For less rigid setups or highly interrupted cuts the universal T9225 grade provides the added toughness required, while in lighter, high-speed applications a different grade might be preferable. Clear documentation of clamping torque and seating condition will improve repeatability and safety.

Where this insert adds measurable value

Suitable for job shops and production lines that machine a range of steels, this indexable plate reduces tooling complexity by covering medium-to-heavy operations with one robust grade. The item offers fast indexing due to its double-sided design, compact stock keeping thanks to the ISO form, and simplified logistics through compatible holder systems. The technical advantages—stable chip control, predictable wear and practical geometry—support a more efficient machining workflow and better process control in everyday turning operations.

For reliable medium-to-heavy steel turning request the Tungaloy SNMG120412 T9225 insert from Metav Werkzeuge or contact the Metav Werkzeuge technical consultants for tailored application advice via info@metav-werkzeuge.com or +49 2822 7131930.

Technical data

• Article number: 6781347
• Manufacturer SKU: TUN6781347
• SKU: 6781347-Tungaloy
• Material: Carbide (Hartmetall)
• Coating: CVD-coated carbide
• Model series: ISO turning indexable inserts

Core dimensions

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

Design and features

• ISO designation: SNMG120412
• Grade: T9225 (robust universal)
• Chipbreaker: Double-sided
• Hole: With cylindrical hole
• Plate form: Square
• Intended use: Turning (external and internal)

FAQ

What materials is this insert suitable for?
The Tungaloy SNMG120412 T9225 insert is specified for medium-to-heavy steel machining; the T9225 grade provides toughness for variable engagement and slightly interrupted cuts.

How is the insert mounted in a holder?
The insert features a cylindrical hole and square form for ISO SNMG holders; proper compatibility depends on holder form, tolerance class, fastening method, size and thickness and must be verified before use.

When should the double-sided chipbreaker be chosen?
A double-sided chipbreaker is advantageous where consistent chip control and longer indexing intervals are required, particularly in varied feeds or mixed-batch turning processes.

Can the insert be used for finishing passes?
Yes; with appropriate feeds and speeds the SNMG120412 plate can deliver a good surface finish, thanks to its geometry and the balanced properties of the T9225 grade.

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.