SNMG 120412 AH8005 Wendeplatten - Tungaloy

Take advantage of the AH8005 PVD‑coated carbide and the 1.2 mm nose radius for stable machining of heat‑resistant alloys and hard materials; order the insert directly via Metav Werkzeuge or consult our advisors for holder compatibility.

SNMG 120412 AH8005 indexable insert for turning — Tungaloy, PVD‑coated carbide, 1.2 mm radius

The SNMG120412 AH8005 is an ISO‑standard square indexable insert designed for external and internal turning, engineered for demanding work on heat‑resistant alloys and hard materials with a 0° rake angle and central cylindrical hole.

• SNMG 120412 ISO‑standard square insert
• PVD‑coated carbide AH8005 for wear resistance
• 1.2 mm nose radius for reliable edge strength
• Double‑sided design with central cylindrical hole

High‑performance cutting for demanding turning tasks

The PVD‑coated AH8005 grade delivers pronounced wear resistance and thermal stability, making it suitable for continuous machining of heat‑resistant alloys and other hard workpieces. The coating minimises flank wear and supports consistent surface finish over longer tool life, which helps to reduce tool change frequency and keeps machine uptime high. This translates into measurable productivity advantages in series production and short‑cycle jobs alike.

Geometry tuned for consistent part quality

A 1.2 mm nose radius and 0° rake angle provide a balanced compromise between edge strength and surface finish: the relatively large radius supports stable cutting forces and reduces notch formation, while the neutral rake enhances resistance to built‑up edge when machining tough alloys. The insert’s square form and 90° included angle enable robust shoulder turning and facing operations. Plate thickness and dimensions contribute to secure clamping and predictable cutting behaviour under varying cutting conditions.

ISO compatibility and system integration made clear

As an ISO‑standard insert, compatibility with the toolholder is determined by form, clearance angle, tolerance class, clamping method, size and thickness. The presence of a central cylindrical hole and the specified dimensions ensure straightforward fitment to a wide range of external holders and boring bars when the holder matches the ISO SNMG interface. For complex assemblies or non‑standard holders, technical guidance is available to verify fitment and clamping torque to maintain repeatable performance.

Durable design and improved machining economy

The double‑sided construction and the AH8005 coating together reduce cost per cutting edge through reversible use and enhanced wear life. The insert’s integrated chip control geometry supports predictable chip formation, lowering the risk of rework and machine stoppages. Over time, the combination of coating, substrate and geometry contributes to a lower total tooling cost and more reliable batch output, which is particularly relevant in production environments where material mix and cycle time matter.

For tailored selection of the SNMG120412 AH8005 Tungaloy indexable insert and compatibility advice, contact Metav Werkzeuge for prompt technical guidance and ordering support.

Technical data

• Article number: 6741677
• Manufacturer SKU: TUN6741677
• SKU: 6741677-Tungaloy
• Name: SNMG120412 AH8005 Tungaloy indexable insert
• Model series: ISO turning indexable inserts

Core specifications

• Nose radius: 1.2 mm
• Plate thickness: 4.76 mm
• Plate size: 12 mm
• Included angle: 90°
• Rake angle: 0°

Design and special features

• Material: carbide
• Coating/grade: AH8005, PVD‑coated
• Plate form: square
• Hole style: central cylindrical hole
• Chipbreaker: double‑sided
• Application: turning (external and internal)
• ISO designation: SNMG120412

FAQ

Which materials is this insert designed to machine?
The SNMG120412 AH8005 Tungaloy indexable insert is optimised for heat‑resistant alloys and other hard materials; the AH8005 grade and PVD coating support stable performance under elevated temperatures.

What cutting geometry influences surface finish and tool life?
A 1.2 mm nose radius and 0° rake angle improve edge strength and reduce notch wear, while the square geometry and 90° included angle suit shoulder turning and facing with consistent part quality.

Is the insert reversible and how does that affect usage?
The double‑sided design allows use of the opposing cutting edges after indexing, extending effective tool life and improving machining economy for production runs.

How to ensure the insert fits the chosen holder?
Compatibility depends on form, clearance angle, tolerance class, clamping style, size and thickness; matching an ISO‑compliant holder and correct underlay/clamping set will ensure secure mounting and repeatable performance.

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.