TNMG 220412 AH6235 Wendeplatten - Tungaloy

Maximise machining reliability with the PVD-coated AH6235 grade and a robust 1.2 mm corner radius for enhanced edge strength and interrupted-cut performance. The combination of ISO compatibility, double-sided chipbreaker geometry and triangular 60° form supports stable turning operations and predictable tool life. Order the TNMG220412 insert directly via Metav Werkzeuge or ask our consultants for application advice.

TNMG 220412 AH6235 ISO turning insert — PVD-coated carbide, triangular 60° geometry, Tungaloy

The TNMG220412 AH6235 is an ISO-standard triangular indexable insert intended for external and internal turning, optimised for stainless steels and interrupted cuts

• PVD-coated carbide grade AH6235
• Optimised for stainless steel machining
• Double-sided chipbreaker design
• 1.2 mm corner radius, 60° triangle

Improved cutting performance through a tougher grade and coating

The insert uses a PVD-coated carbide substrate formulated as grade AH6235, providing increased toughness compared with standard grades. This combination reduces the risk of chipping in interrupted cutting and when machining demanding alloys such as stainless steels. The PVD layer enhances wear resistance and maintains a sharper edge for longer, which translates into fewer indexings and more consistent cycle times for production runs. For operators seeking reliable throughput, the material and coating choices deliver measurable gains in process stability and tool life.

Geometry designed for predictable finishes and simple holder compatibility

The 60° triangular form with a 1.2 mm corner radius balances strength and surface finish: the radius supports robust edges under heavy cuts while still enabling acceptable surface quality on most turned contours. As an ISO-standard insert, compatibility with holders is determined by form, relief angle, tolerance class, fixing method, size and thickness, simplifying procurement and changeover. The insert's through-hole with a cylindrical bore suits standard clamping systems and helps ensure reproducible seating in the pocket, reducing setup variability and downtime.

Consistent chip control and shop-floor benefits

Equipped with a double-sided chipbreaker, the insert produces controlled, repeatable chips across typical turning operations, which lowers the chance of chip entanglement and reduces vibration. Controlled chips and a stable cutting edge contribute directly to improved surface finishes and extended tool life. In practical terms, fewer interruptions from poor chip behaviour mean more parts per shift and a smoother production flow. The insert is best used together with a matched holder, shim and appropriate fastening hardware as part of a complete ISO insert system.

Practical handling, logistics and application notes

The insert is supplied as an ISO turning grade and is straightforward to stock and replace. The triangular format provides multiple indexable edges, and the grade's focus on toughness makes it suitable where occasional interruptions or irregular workpiece conditions occur. Typical system composition includes the ISO insert, a compatible external holder or boring bar, a shim or support plate and a clamping screw. For application-specific recommendations—cutting data, coolant strategies and holder selection—technical advice is available to help integrate the insert into established machining processes.

Contact Metav Werkzeuge for tailored application advice and secure genuine Tungaloy TNMG220412 AH6235 indexable inserts for reliable stainless steel turning; Metav Werkzeuge can assist with selection and stocking options

Technical data

• Article number: 6903403
• SKU: 6903403-Tungaloy
• Manufacturer SKU: TUN6903403
• Model series: ISO-Drehwendeschneidplatten

Numbers / Core technical data

• ISO designation: 220412
• Insert size: 22 mm
• Thickness: 4.76 mm
• Relief angle: 0°
• Included hole: with cylindrical hole
• Corner radius: 1.2 mm
• Form/shape: triangular
• Cutting angle: 60°

Designs / Special features

• Grade: AH6235
• Substrate: PVD-coated carbide
• Chipbreaker: double-sided
• Application: turning (external and internal)
• Typical system: insert + holder/boring bar + shim/clamp + screw

FAQ

What materials is this insert suitable for? The TNMG220412 AH6235 insert is designed primarily for stainless steels and applications with increased risk of chipping; its PVD-coated carbide composition offers toughness for interrupted cuts.

How does the AH6235 grade affect tool life? AH6235's tougher microstructure and PVD coating improve wear resistance and edge robustness, meaning the TNMG220412 provides longer usable life under demanding turning conditions compared with standard grades.

Is the TNMG220412 compatible with existing ISO holders? Yes. The ISO designation 220412 indicates conformity with ISO geometry standards, so compatibility depends on holder form, relief angle, tolerance class, fixing method, size and thickness for proper seating.

What benefits does the double-sided chipbreaker provide? The double-sided chipbreaker on this insert promotes controlled chip formation and reduces vibration, leading to more consistent surface finishes and reduced interruptions during production.

Can the insert be used for internal boring? The insert's form and chip control make it suitable for many internal turning applications when mounted in an appropriate boring bar and used with matching support components.

Which part identifiers should be used when ordering replacement inserts? Use the manufacturer article number 6903403, the SKU 6903403-Tungaloy or the manufacturer SKU TUN6903403 to ensure correct procurement of the TNMG220412 AH6235 insert.

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.