SNMG 120412 AH905 Wendeplatten - Tungaloy

Benefit from the combination of a PVD-coated carbide grade and a double-sided chipbreaker for consistent, secure turning performance; order the SNMG120412 AH905 Tungaloy insert directly via Metav Werkzeuge or ask our consultants for application guidance.

SNMG120412 AH905 SNMG turning insert — PVD-coated carbide, double-sided chipbreaker | Tungaloy

SNMG120412 AH905 is an ISO-standard turning insert designed for external and internal turning, offering a sharp cutting edge and process security for stable machining.

• PVD-coated carbide for long tool life
• Double-sided chipbreaker for reliable chip control
• Square shape with 90° cutting angle
• Cylindrical hole for secure clamping

Consistent cutting performance for turning operations

The PVD-coated carbide grade delivers a consistently sharp cutting edge that supports stable material removal during both external and internal turning. The square, ISO-standard plate geometry with a 90° cutting angle provides predictable cutting forces and dimensional repeatability. This stability reduces vibration and the likelihood of chatter, which in turn improves surface finish and leads to fewer rework cycles. The result is a measurable improvement in process efficiency and predictable cycle times for serial production.

Durability and process security with AH905

The AH905 grade is designed as a wear‑ and fracture‑resistant solution for demanding turning tasks. The PVD coating enhances resistance to abrasion and built-up edge, extending tool life under continuous operation. Combined with the insert’s double‑sided chipbreaker, the system promotes controlled chip formation and evacuation, reducing the risk of workpiece damage and unplanned stoppages. Fewer tool changes mean higher uptime and a lower total cost of production per component.

Compatibility and handling for efficient tool setup

Compatibility with the toolholder is determined by form, clearance angle, tolerance class, attachment method, size and thickness; the SNMG120412 fits standard SNMG holders and uses a cylindrical hole for dependable clamping. The insert’s 1.2 mm corner radius supports robust edge strength while maintaining a fine cutting profile where required. With a plate thickness of 4.76 mm and a 12 mm inscribed circle, the insert integrates smoothly into existing tool systems, enabling quick index changes and simple stock management without complex tooling adjustments.

Contact Metav Werkzeuge today for Tungaloy SNMG120412 AH905 inserts — reliable turning performance and ordering support available via info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number: 6859302
• Manufacturer SKU: TUN6859302
• SKU: 6859302-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Material: Carbide
• Application: Turning
• Wendeplatte designation: SNMG120412

Facts

• Corner radius: 1.2 mm
• Plate thickness: 4.76 mm
• Inscribed circle / size: 12 mm
• Clearance angle: 0°
• Cutting angle: 90°

Special features

• Coating / grade: AH905 (PVD-coated)
• Chipbreaker: Double-sided
• Hole: With hole — cylindrical hole
• Plate form: Square
• Typical use: External and internal turning
• System components: ISO insert, matching outer holder, shim/clamp set, replacement screws

FAQ

What materials is this insert suitable for?
The SNMG120412 AH905 insert in Tungaloy’s PVD-coated carbide grade is optimised for a broad range of steels and provides good wear resistance for continuous turning operations.

How does the double-sided chipbreaker help during machining?
The double-sided chipbreaker on the SNMG120412 controls chip shape and evacuation, improving process stability and reducing the risk of chip-related surface defects.

Is the insert compatible with standard SNMG holders?
Yes. The SNMG120412 follows ISO dimensions and uses a cylindrical hole and standard thickness for compatibility with SNMG toolholders that match the form and tolerance class.

What are the main advantages of the AH905 grade?
AH905 offers a balance of wear resistance and fracture toughness thanks to its PVD-coated carbide construction, supporting a sharp cutting edge and reliable tool life in demanding turning applications.

Can the corner radius be used for finishing operations?
The 1.2 mm corner radius provides a durable cutting edge suitable for medium to finishing passes; it supports stable cuts while still allowing an acceptable surface finish.

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.