SNMG 120408 T9225 Wendeplatten - Tungaloy

Take advantage of the combination of a CVD-coated carbide grade for enhanced toughness, the ISO SNMG 120408 format for wide holder compatibility, and a double-sided chipbreaker that supports medium to heavy steel turning. Order the insert directly via Metav Werkzeuge or request advice from our consultants for optimal grade and holder selection.

SNMG 120408 T9225 indexable turning insert for turning — Tungaloy

SNMG 120408 T9225 is an ISO‑standard indexable insert designed for external and internal turning applications in steel machining, offering a robust universal grade for interrupted cuts.

• CVD-coated carbide T9225 grade
• Robust for medium to heavy steel machining
• ISO SNMG 120408 form for broad compatibility
• Double-sided chipbreaker for efficient chip control

Engineered for reliable steel turning and consistent results

The insert is manufactured from CVD-coated carbide and specified as grade T9225, a robust universal composition developed for medium to heavy steel machining. This combination prioritises toughness where cutting conditions vary or where slight interruptions in the cut occur, reducing the risk of chipping and premature tool failure. The double-sided chipbreaker reduces chip length and improves evacuation, which supports longer uninterrupted runs and fewer machine stops for cleaning. By focusing on material behaviour and coating performance, this solution helps to stabilise the process and maintain part tolerances.

Simple compatibility and predictable set-up

Designed to the ISO SNMG 120408 standard, the insert fits widely used external holders and boring bars when matched by form, relief angle, tolerance class, fastening and thickness. The square insert shape with a 90° lead angle provides secure seating and predictable engagement in typical turning set-ups. The central cylindrical hole enables reliable clamping, while the 0.8 mm corner radius assists in achieving a balance between edge strength and surface finish. These measurable characteristics make tool selection and changeover straightforward for production environments and support consistent cycle times.

Productivity gains through material and geometry choices

The wear‑resistant carbide substrate combined with a CVD coating delivers good flank and crater wear performance under steel turning conditions, yielding longer tool life and fewer indexings. The 4.76 mm plate thickness and the geometry choices offer rigidity that helps to dampen vibration, especially when machining heavier sections. Optimised chip control and the universal sortation of the grade mean that one insert type can cover a range of turning tasks, reducing inventory complexity and simplifying tool management in the workshop.

Practical considerations for workshop use and process planning

Because the insert is double-sided, one item offers two usable cutting edges, improving economy per edge while maintaining consistent cutting geometry. The inclusion of a cylindrical hole and the ISO form simplifies mounting and repeatability when paired with the correct clamping set and screws. For interrupted cuts or applications with variable engagement, selecting the T9225 grade helps to maintain productivity where more brittle grades might fail. If there is any uncertainty about holder compatibility or parameter optimisation, technical advice is available to align the insert with machine and workpiece conditions.

For secure, productive turning with Tungaloy’s T9225 grade, contact Metav Werkzeuge for availability and tailored technical guidance: info@metav-werkzeuge.com | +49 2822 7131930

Technical Data

• Article number: 6796045
• Manufacturer SKU: TUN6796045
• SKU: 6796045-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Material: Carbide
• Grade/coating: T9225 / CVD-coated

Core specifications

• Insert designation: SNMG120408
• Shape: Square (SNMG)
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Lead angle: 90°
• Relief angle: 0°
• Hole: with hole — cylindrical

Special features

• Double-sided chipbreaker
• Compatible with ISO SNMG holders
• Robust universal grade for medium to heavy steel machining
• Central cylindrical hole for secure clamping
• Designed for external and internal turning

FAQ

What materials is this insert suited for?
The SNMG 120408 T9225 indexable insert is specified for medium to heavy steel machining and performs well under variable engagement and slightly interrupted cuts.

How does the T9225 grade affect tool life?
The T9225 grade, with its CVD coating and carbide substrate, improves toughness and wear resistance, which extends tool life compared with uncoated or less tough grades.

Is the insert reversible and how many cutting edges are available?
Yes, the insert is double-sided, offering two usable cutting edges per insert to improve economy and reduce tooling changes.

Which holders are compatible with this SNMG insert?
Compatibility is achieved with holders matching the ISO SNMG 120408 form; correct fit depends on form, relief angle, tolerance class, fastening method, size and thickness.

What corner radius and thickness should be expected during set-up?
Set-up should account for a 0.8 mm corner radius and a plate thickness of 4.76 mm to ensure correct clamping and cutting geometry.

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.