TNMG 220408 AH6235 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD-coated carbide grade AH6235, a precise corner radius of 0.8 mm, and ISO compatibility to ensure stable machining and reduced tool changes; order the TNMG220408 AH6235 Tungaloy indexable turning insert directly via Metav Werkzeuge or consult our specialists if further advice is needed.

TNMG220408 AH6235 Tungaloy indexable turning insert — triangular, PVD-coated for turning

TNMG220408 AH6235 is an ISO-standard triangular indexable turning insert designed for external and internal turning, optimised for stainless steels and interrupted cuts.

• PVD-coated tough grade AH6235
• Triangular form with double-sided chipbreaker
• 0° clearance, 60° included angle
• ISO TNMG 220408 compatibility

Improved chip control and consistent productivity

The combination of a PVD-coated carbide substrate and the AH6235 tough grade provides a balance between edge strength and wear resistance, which translates into better resistance to chipping during heavy engagement or interrupted cuts. The built-in double-sided chipbreaker promotes predictable chip flow and reduces the need for constant manual intervention, thus supporting a smoother production flow. This geometry and coating pairing is particularly relevant in applications where material adhesion and built-up edge are a concern; the coating reduces friction and helps maintain surface finish while preserving the cutting edge under variable loads.

Tailored for stainless steels and interrupted machining

Designed with a corner radius of 0.8 mm and a neutral 0° clearance, this insert gives stable cutting forces and improved edge support when machining hard-to-cut alloys, notably stainless steel. The tougher substrate grade reduces the risk of crater wear and flank chipping that often occur with softer coatings in such materials. For operations that include frequent entry and exit or interrupted sections, the insert’s construction reduces unexpected tool failure and contributes to predictable cycle times and fewer unscheduled stoppages.

Clear system compatibility and mounting guidance

Compliance with the ISO designation ensures that the insert integrates into a standard tool system: form, clearance angle, tolerance class, fastening method, size and thickness determine holder compatibility. The triangular geometry with a cylindrical hole and defined thickness of 4.76 mm suits many commercial external holders and boring bars when the correct clamping kit and screws are used. For secure assembly, match the insert’s ISO form and hole style to the chosen holder; correct matching guarantees repeatable clamping and positional accuracy during serial production.

Durability, economy and practical advantages for the workshop

Being double-sided, the insert offers multiple indexed cutting edges, which increases the number of usable edges per insert and lowers tooling consumption over time. The 4.76 mm thickness and robust substrate contribute to reliable performance and longer edge life under moderate to heavy depths of cut. Selecting a grade engineered for stability in stainless steels and for applications prone to chip-out improves first-part quality and reduces downstream rework—an economic benefit that becomes evident across batches and enhances overall process reliability.

For reliable, production-ready turning with the AH6235 grade, contact Metav Werkzeuge for fast supply and tailored application advice at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Manufacturer article number: 6903405
• Manufacturer SKU: TUN6903405
• SKU: 6903405-Tungaloy

Core technical data

• Size: 22 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Clearance angle: 0°
• Included angle: 60°
• ISO designation: 220408

Special features

• Material: PVD-coated carbide (AH6235)
• Insert form: triangular
• Hole style: cylindrical hole
• Chipbreaker: double-sided
• Double-sided indexable insert
• Application: turning (external and internal)
• Model series: ISO turning indexable inserts
• System components: compatible holder, clamp set and spare screws

FAQ

Which materials is this insert suited for?
The TNMG220408 AH6235 insert is optimised for stainless steel and similar alloys, with the AH6235 grade providing toughness for interrupted cuts.

Can the insert handle interrupted cuts and unstable conditions?
Yes, the AH6235 grade and robust geometry of the TNMG220408 insert improve resistance to chipping in interrupted and unstable cutting situations.

How many usable cutting edges are available per insert?
As a double-sided triangular insert, the TNMG220408 AH6235 provides multiple indexed cutting edges, increasing the number of utilisable edges before disposal.

What mounting characteristics must be checked for compatibility?
Match the ISO form, 0° clearance, the cylindrical hole style and the 22 mm size to the chosen holder; correct clamping and tolerance class ensure repeatable precision.

What specific benefits does the AH6235 grade offer?
The AH6235 PVD-coated carbide offers enhanced toughness and wear resistance, reducing the risk of edge breakage and improving tool life in demanding stainless steel operations.

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.