TNMG 160408 AH725 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide performance, a 0.8 mm corner radius for precise finishes, and ISO compatibility for streamlined tool selection; order the insert directly via Metav Werkzeuge or consult the team for application advice.

TNMG160408 AH725 Tungaloy turning insert — ISO triangular insert for general turning, steel and stainless steel

The TNMG160408 AH725 Tungaloy indexable turning insert is an ISO-standard triangular carbide plate designed for external and internal turning in mixed-material production environments

• TNMG format, ISO 160408 triangular insert
• PVD-coated carbide grade AH725 for steels
• Double-sided chipbreaker with cylindrical hole
• 0.8 mm corner radius for precise cuts

Reliable cutting in mixed-steel production

The PVD-coated carbide grade AH725 offers a balanced mix of toughness and wear resistance that suits a wide range of steels and rostfrei materials. The coating improves surface hardness and reduces built-up edge, while the substrate provides fracture resistance under interrupted cuts. This combination delivers a predictable tool life even when the workpiece material varies in a single batch, supporting higher process security and fewer tool changes. For production lines that require steady throughput, the universal nature of this grade reduces tool inventory and simplifies setup.

Geometry that improves dimensional accuracy

A triangular plate with a 60° cutting angle and a 0.8 mm corner radius yields consistent chip formation and repeatable component geometry. The double-sided chipbreaker design allows alternation between edges, extending the effective life per insert and supporting tight tolerances. The cylindrical centre hole ensures secure clamping in standard ISO holders; the plate thickness of 4.76 mm and the nominal size 16 mm provide the stiffness needed for fine finishing and semi-finishing passes. These geometric choices minimise vibration and reduce the need for rework, translating into time and cost savings.

Chip control and process stability for efficient machining

Chip management is critical in turning; the integrated chipbreaker promotes short, manageable chips that evacuate reliably, lowering the risk of surface damage or spindle stoppages. The PVD coating assists in thermal resistance at higher cutting speeds, so the insert supports efficient machining strategies without compromising surface quality. For smaller tooling or operations with frequent material changes, the grade’s fracture resistance helps to avoid unexpected edge failures, improving overall line uptime and consistency of results.

ISO compatibility for quick tool system integration

As an ISO-specification insert, compatibility depends on form, clearance angle, tolerance class, fastening and thickness — all standardised to enable straightforward pairing with compatible holders, shims and clamping sets. Typical system components include the ISO triangular insert, a matching external holder or boring bar, a supporting shim/clamp kit and spare fastening screws. This standardisation reduces setup time on the shop floor and simplifies procurement, helping maintenance and toolrooms to manage tooling more efficiently.

Contact Metav Werkzeuge today for tailored application guidance, availability and delivery options for Tungaloy turning inserts; Metav Werkzeuge can advise on holders, cutting data and batch supply logistics

Technical data

• Article number: 6859534
• SKU (manufacturer): TUN6859534
• Manufacturer article number: 6859534
• Brand: Tungaloy
• Model series: ISO-Drehwendeschneidplatten

Facts

• Size: 16
• Plate thickness: 4.76 mm
• Corner radius: 0.8 mm
• Clearance angle: 0°
• Insert geometry: 60°

Special features

• PVD-coated carbide
• Grade AH725
• Triangular plate, double-sided chipbreaker
• Cylindrical centre hole
• Application: turning (external and internal)
• Compatibility with ISO-standard holders, shim and clamping kits

FAQ

What materials is this insert suited for?
The TNMG160408 AH725 Tungaloy indexable insert is designed primarily for steel and rostfrei (stainless) steels; the AH725 grade offers universality across mixed-steel production.

How many effective cutting edges are available per insert?
The triangular form with a double-sided chipbreaker provides multiple usable edges; alternating edges extends the insert life before replacement.

Which holders fit this ISO insert?
ISO-standard triangular turning holders that accept 160408-format plates and secure inserts via a cylindrical-hole clamping system are compatible with the TNMG160408 AH725 Tungaloy insert.

What advantage does the PVD coating bring for turning operations?
The PVD-coated carbide of this AH725 grade improves wear resistance and thermal stability, enabling higher cutting speeds and more consistent surface quality under typical turning conditions.

Is the insert suitable for interrupted cuts or small-diameter tooling?
The AH725 substrate offers enhanced fracture resistance, making the insert suitable for interrupted cuts and applications where smaller tooling requires robust edge stability.

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.