SNMG 120408 AH6225 Wendeplatten - Tungaloy

Benefit from the combination of a PVD-coated carbide grade and a 0.8 mm corner radius for stable medium turning of stainless steels; the ISO compatibility ensures straightforward integration into existing turning tool systems. Order the insert directly via Metav Werkzeuge or consult the technical advisors for application-specific setup.

SNMG 120408 AH6225 turning insert — PVD-coated carbide, 0.8 mm radius (Tungaloy)

The SNMG120408 AH6225 is an ISO-standard square indexable insert engineered for reliable external and internal turning of stainless steels in medium cutting conditions.

• PVD-coated carbide for extended edge life
• Universal grade optimised for stainless steels
• 0.8 mm corner radius for robust edge performance
• ISO square insert with cylindrical hole

Consistent medium turning and predictable tool life

The combination of a PVD-coated carbide substrate and the AH6225 cutting grade delivers a balance of sharpness and edge stability that suits medium material removal in variable conditions. The 0.8 mm corner radius reduces the tendency for edge chipping while maintaining a finish suitable for subsequent operations. This translates into more predictable tool life per index and fewer unscheduled tool changes, supporting smoother shop-floor throughput and reduced machining downtime.

Clear compatibility and simple selection for holders

Compatibility is governed by the insert’s geometry and dimensions: ISO-standard form, a 90° cutting angle, a 4.76 mm plate thickness and the central cylindrical hole for secure clamping. The relief specification (relief angle 0°) and tolerance class determine which external holders and boring bars are suitable; matching these parameters avoids runout and ensures repeatable results. For technicians less familiar with holders, the compatibility criteria allow straightforward selection from existing holder inventories without trial-and-error.

Improved surface quality and efficient chip control

The double-sided chipbreaker and the insert’s edge geometry promote reliable chip control during stainless steel turning. The double-sided chipbreaker minimises re-cutting of chips and reduces the heat concentration at the cutting edge, which helps achieve a consistent surface finish even under changing cutting conditions. Using a universal grade tailored to stainless steel reduces the need for multiple dedicated grades, simplifying tool management while maintaining process stability.

Practical system advantages and economical use

As part of an ISO insert system, the plate is intended to be used with a matching external holder or boring bar together with a shim or clamping set and spare screws. The double-sided design effectively doubles the number of usable cutting edges per insert, improving cost-efficiency per edge. Where production repeatability and quick index changes matter, the ISO format and stable grade characteristics enable faster set-ups and less scrap, which supports leaner operations and better overall productivity.

For application advice or to order the Tungaloy SNMG120408 AH6225 turning insert, contact Metav Werkzeuge — info@metav-werkzeuge.com or call +49 2822 7131930 — for rapid consultation and delivery options.

Technical data

• Article number: 6947304
• SKU: 6947304-Tungaloy
• Manufacturer SKU: TUN6947304
• Model series: ISO turning inserts
• Material: Carbide
• Grade: AH6225
• Coating: PVD

Core data

• ISO designation: SNMG120408
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Cutting angle: 90°
• Relief angle: 0°

Special features

• Double-sided chipbreaker
• Square insert with cylindrical hole
• Universal for stainless steel machining
• Sharp yet stable cutting edge for medium cutting
• ISO-standard compatibility with holders and shims

FAQ

What materials is this insert best suited to machine?
The SNMG120408 AH6225 turning insert is a universal grade optimised for stainless steel, providing a stable cutting edge and good process security for medium turning operations.

How is the insert mounted and secured in a holder?
The square ISO form with a central cylindrical hole requires a compatible external holder or boring bar and a matching shim/clamping set; the SNMG120408 format and dimensions ensure secure, repeatable clamping.

Can the insert be re-indexed and how many usable edges are available?
The plate is double-sided with a chipbreaker on each face, allowing re-indexing to multiple cutting edges and thus improving cost efficiency per insert.

What are the key dimensions to check before ordering holders?
Check the ISO designation SNMG120408, plate size 12 mm, thickness 4.76 mm and corner radius 0.8 mm; also confirm the relief angle 0° and the 90° cutting angle to match the holder geometry.

Why choose a PVD coating for this application?
A PVD coating on carbide increases wear resistance and helps maintain a sharp, stable edge when machining stainless steel, reducing edge deterioration under medium cutting 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.