SNMG 120412 AH120 Wendeplatten - Tungaloy

Reliable turning performance from a wear‑resistant AH120 PVD coating and a versatile 1.2 mm corner radius supports consistent production results; compatibility with ISO holders and a square, double‑sided design reduces downtime and tool changes. Order the insert directly via Metav Werkzeuge or consult their specialists for holder compatibility and application advice.

SNMG 120412 AH120 Turning Insert – PVD-coated carbide, 1.2 mm corner radius, for turning

The SNMG120412 AH120 is a PVD‑coated carbide turning insert designed for ISO‑compliant external and internal turning applications where a sharp cutting edge and high process security are required.

• PVD-coated carbide grade AH120
• 1.2 mm corner radius for versatility
• Square insert with cylindrical hole
• Double-sided chipbreaker design

Engineered for consistent cutting and long tool life

The PVD‑coated AH120 grade combines a wear‑resistant coating with a carbide substrate to deliver process security and resistance to edge chipping under demanding turning conditions. This combination helps to maintain a sharp cutting edge over longer tool life, reducing interruptions for regrinding or insert changes. The coating also supports stable thermal behaviour during interrupted cuts, which contributes to steady surface finishes and predictable tool performance.

Designed for seamless integration into ISO indexable systems

As an ISO‑designated turning insert, compatibility with a holder is governed by form, clearance angle, tolerance class, fastening method, size and thickness. The square geometry and cylindrical hole enable reliable clamping with standard clamping kits, while the double-sided construction allows economical indexing. Clear identification of holder form and tolerance ensures accurate seating and repeatable results when the insert is mounted in a suitable external holder or boring bar.

Geometry that balances strength and versatility

The insert’s 90° cutting angle and 1.2 mm corner radius provide a balance between edge strength and versatility for chamfering, finishing and light roughing operations. A 0° clearance angle and a plate thickness of 4.76 mm contribute to rigid support under cutting loads, while the nominal plate size of 12 mm gives predictable engagement lengths for typical turning tasks. These geometric choices reduce vibration and support consistent chip control when the correct chipbreaker and grade are selected for the workpiece material.

Practical benefits for shopfloor productivity

Using a PVD‑coated carbide grade with a robust geometry improves uptime through stable chip formation and fewer edge failures, which in turn lowers overall tooling costs per component. Integration into a complete indexable system—comprising the insert, matching external holder or boring bar, shim/clamp set and replacement screws—ensures quick changeovers and straightforward stock management. When applied with appropriate speeds and feeds for the workpiece and machine rigidity, this insert helps to increase part output without compromising surface quality.

For reliable, process‑secure turning with the Tungaloy AH120 grade, contact Metav Werkzeuge for order and technical advice at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Manufacturer article number: 6811963
• SKU: 6811963-Tungaloy
• Manufacturer SKU: TUN6811963
• Model series: ISO turning indexable inserts
• Product name: SNMG120412 AH120

Numerical data

• Corner radius: 1.2 mm
• Clearance angle: 0°
• Plate thickness: 4.76 mm
• Plate size: 12 mm
• Insert angle: 90°

Design and features

• Grade/coating: AH120 PVD-coated carbide
• Geometry: square insert, double-sided chipbreaker
• Hole: cylindrical hole
• Application: turning (external and internal)
• Compatibility: ISO form; fit depends on shape, size, thickness and tolerance class

FAQ

Which holder types are compatible with this insert?
Compatibility depends on the holder’s ISO form, clearance and tolerance class; the SNMG120412 AH120 turning insert fits standard SNMG‑type ISO holders and requires matching clamping hardware for secure seating.

For which machining tasks is the AH120 grade best suited?
The AH120 PVD‑coated grade on this Tungaloy insert is intended for turning tasks that demand wear resistance and process security, offering broad applicability across finishing and light to medium roughing operations.

What does the 0° clearance angle imply in practice?
A 0° clearance angle indicates the insert is designed for neutral clearance geometry, providing solid support at the cutting edge and beneficial stiffness for many turning operations, especially when using stable holders.

How does the double-sided design affect usage?
The double‑sided construction allows the insert to be indexed to a fresh edge when a face becomes worn, improving economy; the exact number of usable edges depends on the insert geometry and manufacturer guidelines.

Is this insert suitable for internal turning operations?
Yes, the insert is suitable for both external and internal turning when used with the appropriate boring bar or internal holder configured to accept the SNMG form.

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.