SNMM 120408 T9215 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated carbide grade T9215 and a 0.8 mm corner radius for reliable, high-productivity turning of medium steels; compatible with ISO toolholders and suitable for continuous to light interrupted cuts. Order the SNMM120408-57 T9215 Tungaloy insert directly via Metav Werkzeuge or ask our consultants if needed.

SNMM 120408 T9215 ISO turning insert (CVD-coated carbide) by Tungaloy

The SNMM120408-57 T9215 is an ISO turning indexable insert engineered for medium steel machining, combining high wear resistance with robust fracture protection for productive, repeatable cutting.

• CVD-coated carbide grade T9215
• Optimised for medium steel machining
• Square ISO form, 0.8 mm corner radius
• For continuous to light interrupted cuts

High-performance grade for medium-steel productivity

The insert features a CVD-coated carbide substrate in grade T9215, designed as a first choice for medium steel applications. The coating improves surface hardness and heat resistance, which translates into higher wear resistance and extended tool life under continuous operation. This results in fewer indexings and less machine downtime, supporting higher throughput in batch and series production. The combination of coating and substrate also enhances fracture resistance, making the insert suitable when stability is variable or when light interruptions occur.

Geometry and what it means for component quality

The insert's square form with an 0.8 mm corner radius delivers a robust cutting edge that balances finishing capability and edge strength. A larger corner radius helps distribute cutting forces, improving surface finish and reducing the risk of chipping on interrupted cuts. The insert thickness of 4.76 mm and the 90° approach angle provide stable support in the pocket, while the 0° clearance contributes to predictable cutting behaviour. These geometric choices ensure consistent dimensional results and reliable workpiece quality during turning operations.

Compatibility and mounting considerations

Compatibility with toolholders is determined by the insert's ISO form, size 120408, fastening style and thickness. This insert is supplied with a cylindrical hole, allowing secure clamping in standard ISO-compatible external holders or boring bars when the holder supports the SNMM geometry. Correct selection of a matching holder and clamping set ensures repeatable seating and concentricity, which is essential for maintaining tolerances and achieving optimal tool life. The system approach—insert, holder, shim and clamping screw—supports quick index changes and predictable set-up times.

Recommended applications and process benefits

Designed for turning tasks, the insert excels in external and internal turning of medium steels under continuous and light interrupted cutting regimes. The T9215 grade is intended for users seeking a balance between tool life and cutting-edge security: it enables productive machining without compromising on safety against brittle fracture. For shops aiming to raise throughput while preserving surface integrity, this insert supports both roughing passes at higher material removal rates and stepped finishing cuts where edge strength is required.

For tailored advice on application or to secure genuine Tungaloy inserts such as the SNMM120408-57 T9215, contact Metav Werkzeuge via info@metav-werkzeuge.com or call +49 2822 7131930 for prompt assistance

Technical Data

• Article number: 6773942
• SKU: 6773942-Tungaloy
• Manufacturer SKU: TUN6773942
• Designation: SNMM120408-57
• Manufacturer: Tungaloy

Core specifications

• Corner radius: 0.8 mm
• Plate thickness: 4.76 mm
• Plate size: 12
• Relief angle: 0°
• Approach angle: 90°
• Grade: T9215

Special features

• CVD-coated carbide
• Square ISO form
• With cylindrical hole
• Suitable for medium steel machining
• For continuous and light interrupted cuts
• Compatible with ISO toolholders (form, tolerance, fastening)

FAQ

What materials is this insert best suited for?
The SNMM120408-57 T9215 insert is optimised for medium steel machining; the CVD-coated carbide substrate provides wear resistance and fracture protection for these materials.

How does the 0.8 mm corner radius affect machining results?
A 0.8 mm corner radius increases edge strength and improves surface finish by distributing cutting forces, which is beneficial for both finishing passes and light interrupted cuts with the SNMM insert.

Is the insert compatible with standard ISO toolholders?
Yes, the SNMM form is an ISO-standard geometry; compatibility depends on matching the holder by form, relief angle, tolerance class, fastening and thickness.

What cutting conditions is grade T9215 intended for?
Grade T9215 is aimed at productive turning of medium steels under continuous to lightly interrupted cuts, offering a balanced combination of wear resistance and fracture toughness.

Why does the insert have a cylindrical hole?
The cylindrical hole enables secure and repeatable clamping in compatible holders, improving concentricity and reducing the risk of movement during heavy cuts.

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.