SNMG 120412 AH120 Wendeplatten - Tungaloy

Take advantage of wear- and fracture-resistant AH120 grade, the PVD-coated cemented carbide body and a 1.2 mm corner radius for consistent cutting performance and longer edge life; order matching holders and accessories via Metav Werkzeuge or contact our consultants for tailored toolset recommendations.

SNMG120412 AH120 SNMG Indexable Turning Insert for Turning — Tungaloy

The SNMG120412 AH120 is an ISO‑standard indexable insert designed for external and internal turning, combining a sharp cutting edge with process‑reliable PVD‑coated cemented carbide for demanding production environments

• PVD-coated cemented carbide for wear resistance
• Square SNMG geometry, 90° included angle, 12 mm size
• 1.2 mm corner radius for robust edge stability
• Double-sided chipbreaker with cylindrical mounting hole

Consistent cutting edge and extended tool life

The SNMG120412 AH120 insert delivers a stable cutting edge thanks to the PVD-coated cemented carbide grade AH120, which is specified for combined resistance to wear and edge breakouts. The insert’s 1.2 mm corner radius and 90° geometry provide a reliable edge form that mitigates premature chipping while maintaining dimensional control on facing and general turning operations. With a plate thickness of 4.76 mm and a nominal size of 12 mm, the insert sits in standard ISO toolholders where compatibility is determined by form, relief angle, tolerance class, size and thickness; this ensures predictable fitment and repeatable clamping accuracy. The coating reduces adhesion and abrasion, helping to preserve a sharp profile over longer engagement times.

Secure clamping and efficient indexability for productive turning

Designed as an ISO-standard indexable insert, the SNMG format enables quick indexing to a fresh cutting edge, shortening machine downtime and improving productivity. The insert is double-sided, offering two usable cutting positions per side, and features a cylindrical hole for secure central clamping. In a standard system setup—insert, compatible external holder or boring bar, shim/clamping set and replacement screws—this geometry allows straightforward changeover and consistent radial and axial positioning. The integrated chipbreaker geometry is tuned for stable chip formation; when paired with the correct holder and cutting data, it supports uninterrupted cycles and fewer interruptions for edge maintenance.

Broad application focus and process safety where sharp edges are required

The AH120 grade was developed for operations requiring both a sharp cutting edge and high process security. The PVD layer enhances resistance to heat and abrasion while maintaining edge definition, making the insert suited to a wide range of turning tasks where controlled chip formation and surface quality matter. Choosing the appropriate chipbreaker and grade for the workpiece material and machining strategy is key to maximising tool life and part quality. The insert’s square form and 90° included angle make it a versatile choice for general turning, light profiling and facing operations where a robust edge and reliable repeatability are priorities.

For reliable, production‑ready turning with the AH120 grade, contact Metav Werkzeuge for expert advice and matching holders — eMail: info@metav-werkzeuge.com — Tel: +49 2822 7131930

Technical Data

• Article number: 6806825

• Manufacturer SKU: TUN6806825

• Vendor SKU: 6806825-Tungaloy

• Model series: ISO-Drehwendeschneidplatten

• Application: Turning

Core specifications

• Grade: AH120

• Material: Cemented carbide

• Coating: PVD

• Geometry: SNMG120412

• Size: 12 mm

• Thickness: 4.76 mm

• Corner radius: 1.2 mm

• Relief/free angle: 0°

• Included angle: 90°

Special features

• Double-sided chipbreaker

• Cylindrical mounting hole

• Square plate form

• ISO-standardised insert

• Wear- and fracture-resistant design

FAQ

What holders are compatible with this insert?
Compatible holders are those specified for SNMG120412 geometry with matching form, relief angle and tolerance class; the Tungaloy indexable turning insert (SKU TUN6806825) requires a corresponding SNMG external holder or boring bar.

How many usable cutting edges does the insert provide?
The SNMG120412 AH120 is double-sided and square, offering multiple indexed edges; each face provides usable cutting positions, effectively doubling the available edges compared with single-sided types.

Is the AH120 grade suitable for interrupted cuts?
The AH120 PVD-coated grade is designed for wear- and breakout resistance, making it appropriate where occasional interruptions or unstable engagement might occur, provided cutting data and clamping are matched to the workpiece.

What role does the PVD coating play?
The PVD coating on the cemented carbide substrate reduces adhesion and abrasion at the cutting edge, improving heat resistance and maintaining a sharper profile during extended turning cycles with the SNMG120412 insert.

Does the insert include screws or clamping hardware?
The offer refers to the indexable insert only; a complete system typically requires a matching external holder, shim/clamping set and replacement screws compatible with the SNMG mounting 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.