SNMG 120408 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a sharp, stable cutting edge and a universal PVD-coated carbide grade for productive turning of stainless steel; order the insert via Metav Werkzeuge or consult our technical advisors for cutting data and holder compatibility.

SNMG 120408 AH6225 Turning insert by Tungaloy

SNMG120408 AH6225 is a square ISO-standard turning insert optimised for medium-duty external and internal turning, particularly suited to stainless steel with a 0.8 mm corner radius and a 90° geometry.

• PVD-coated carbide grade AH6225
• ISO SNMG 120408 format
• Optimised for stainless steel machining
• Double-sided, economical indexable insert

Consistent cutting performance for stable production

The PVD-coated carbide composition of this ISO-format insert delivers a sharp yet durable cutting edge, designed to resist short-term thermal peaks and maintain dimensional stability during medium machining. The AH6225 grade targets applications where a balance between edge life and surface finish is required. As an indexable insert with a 0.8 mm corner radius, the component offers predictable cutting forces that help to reduce vibration and promote repeatable part quality, which in turn supports reliable cycle times on conventional and CNC lathes.

Engineered for stainless steel and mixed conditions

This turning geometry is specifically prepared for working with stainless steel, where chip control and edge integrity are critical. The insert’s PVD layer improves wear resistance on interrupted cuts and variable cutting conditions, while the double-sided design provides two usable edges for cost-effective tool life. When paired with an appropriate chipbreaker and a matching holder, the system reduces secondary operations and contributes to a consistent surface finish on shafts and bores during both external and internal turning tasks.

System compatibility and economical handling

The SNMG format is ISO-standardised; compatibility with a toolholder is determined by form, clearance angle, tolerance class, fastening, size and thickness. The square plate with a cylindrical hole and a plate thickness of 4.76 mm integrates into common external holders and boring bars designed for SNMG inserts. The double-sided nature makes tool management straightforward: inserts can be rotated to a fresh edge, lowering per-part tooling costs and simplifying inventory for batch production.

Practical selection and setup guidance

Choosing the right chipbreaker and grade is essential: select a chipbreaker suited to the feed and depth of cut, and confirm that the holder supports the 90° cutting angle for the intended operation. The insert’s dimensions (size 12) and 0° clearance specification ensure predictable engagement with the workpiece. For shops that require support with cutting parameters or holder pairing, the technical consultants at Metav Werkzeuge can provide manufacturer-recommended speeds, feeds and approach strategies that match machine rigidity and part tolerances.

For application-specific cutting data, batch pricing or to confirm holder compatibility for the AH6225 grade, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 — technical consultants are available to advise on integration into existing tool systems.

Technical data

• Article number: 6947309
• Manufacturer item number: 6947309
• SKU: 6947309-Tungaloy
• Manufacturer SKU: TUN6947309
• Item name: SNMG120408 AH6225 Tungaloy indexable insert

Facts

• Geometry angle: 90°
• Corner radius: 0.8 mm
• Plate thickness: 4.76 mm
• Size designation: 12
• Clearance angle: 0°
• Plate form: square

Special features

• PVD-coated carbide (AH6225)
• Double-sided insert with cylindrical hole
• ISO turning insert, model series: ISO-Drehwendeschneidplatten
• Optimised for stainless steel machining
• Compatibility depends on holder form, clearance angle, tolerance class, fastening, size and thickness

FAQ

What materials is this insert suitable for?
The SNMG 120408 AH6225 insert is optimised for stainless steel and performs well under medium-duty turning conditions; the AH6225 grade provides a balance between wear resistance and edge sharpness.

How many usable edges does the insert offer?
The insert is double-sided, providing two usable cutting edges per side, which extends the effective tool life and improves cost efficiency for batch machining.

What are the key dimensions to check for holder compatibility?
Check the plate size (12), plate thickness (4.76 mm), corner radius (0.8 mm) and the cylindrical hole form to ensure correct seating and clamping in the intended SNMG holder.

Does the PVD coating affect cutting parameters?
Yes; the PVD layer on the AH6225 grade increases wear resistance and often allows stable performance at slightly higher speeds compared with uncoated grades, but recommended speeds and feeds should be adapted to machine rigidity and part tolerances.

Is this insert suitable for both external and internal turning?
Yes, the ISO SNMG 120408 format and its 90° geometry make it appropriate for both external and internal turning operations when used with a compatible holder.

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.