SNMN 120412 AH120 Wendeplatten - Tungaloy

Benefit from the combination of PVD-coated carbide grade AH120 and ISO compatibility to ensure stable cutting performance and reduced tool-change intervals. Order the SNMN120412 AH120 Tungaloy insert directly via Metav Werkzeuge or ask our consultants if needed.

SNMN120412 AH120 Tungaloy turning insert — ISO turning insert, 90° square, 1.2 mm corner radius

SNMN120412 AH120 Tungaloy turning insert is an ISO-compliant indexable insert for external and internal turning applications, offering a wear-resistant PVD-coated carbide grade for process-secure machining.

• PVD-coated carbide grade AH120
• ISO SNMN120412 size, 90° square
• 1.2 mm corner radius for robust edges
• No-hole square insert, 4.76 mm thickness

Consistent edge life and secure cutting performance

The PVD coating on the carbide substrate delivers a balanced combination of wear resistance and edge integrity, which is essential for sustained turning operations. The AH120 grade is formulated for applications where a sharp cutting edge and high process security are required; this reduces the frequency of tool changes and supports longer uninterrupted runs. In practice, the result is predictable tool life and improved component consistency when machining steels and alloyed materials under stable cutting conditions.

Integration with ISO tooling systems for fast setup

Designed as an ISO indexable insert, compatibility with the toolholder depends on form, relief angle, tolerance class, clamping method, size and thickness. The square geometry with an included angle of 90° and a plate thickness of 4.76 mm enables straightforward interchangeability into standard external holders or boring bars. The absence of a central hole simplifies seating on holders designed for corner clamping; correct selection of holder and clamping components ensures secure fixation, accurate repeatability and minimal setup time on CNC lathes.

Robust geometry for roughing and finishing balance

The 1.2 mm corner radius provides strength at the cutting edge, making the insert suitable for heavier cross-sections and interrupted cuts while still permitting good surface finish when parameters are tuned. Although there is no dedicated chipbreaker, matching the insert grade and geometry to the workpiece material and cutting conditions allows a controlled chip formation and stable machining. This balance is particularly valuable when alternating between roughing passes and finishing passes on shafts, housings or turned profiles.

Practical guidance and application support

Selection of the appropriate chipformer and insert grade should follow the workpiece material, machining strategy and machine-tool rigidity. For external and internal turning, pair the insert with a compatible square holder and follow the manufacturer’s recommendations for speeds and feeds for steel and alloyed materials. If further technical data or cutting parameter guidance is required, Metav Werkzeuge’s technical team can provide tailored recommendations and assist with process optimisation via email or telephone: info@metav-werkzeuge.com | +49 2822 7131930.

Contact Metav Werkzeuge today for advice on integrating Tungaloy inserts into the production line and to request batch availability and delivery options

Technical data

• Article number: 6850593
• Manufacturer SKU: TUN6850593
• Brand: Tungaloy
• Model series: ISO-Drehwendeschneidplatten

Facts

• Geometry / ISO designation: SNMN120412
• Grade: AH120 (PVD-coated carbide)
• Corner radius: 1.2 mm
• Included angle: 90°
• Plate size: 12 mm
• Thickness: 4.76 mm

Designs / Special features

• Square insert (4-sided indexable)
• No central hole
• No chipbreaker
• Intended application: turning (external & internal)
• Relief angle: 0°
• Compatible with ISO turning holders

FAQ

What materials is this insert suited for?
The SNMN120412 AH120 Tungaloy insert is a PVD-coated carbide grade designed primarily for steels and alloyed materials where a sharp edge and process security are required.

How does the 1.2 mm corner radius affect machining?
A 1.2 mm corner radius increases edge strength for roughing and interrupted cuts while still permitting good finishes when feeds and speeds are adjusted appropriately.

Is this insert compatible with standard ISO toolholders?
Yes; the SNMN120412 follows ISO geometry. Compatibility depends on holder form, clamping type, tolerance class, size and thickness, so use holders specified for square SNMN inserts.

Does the insert include a chipbreaker?
This particular insert is supplied without a dedicated chipbreaker; chip formation must be managed by cutting parameters and the choice of holder or external chip control methods.

How can cutting parameters be obtained for a specific workpiece?
Metav Werkzeuge can provide application-specific recommendations; consult the technical team with details of workpiece material, desired surface finish and machine rigidity.

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.