TPMT 090204 AH6235 Wendeplatten - Tungaloy

Achieve stable, repeatable turning results with the PVD-coated AH6235 grade and a 0.4 mm corner radius for reliable edge strength; the ISO triangular form supports straightforward holder matching, reducing setup time. Order directly via Metav Werkzeuge or request advice from the consultants for selection and holder compatibility.

TPMT 090204 AH6235 triangular indexable turning insert, 11° relief — Tungaloy

The TPMT090204 is an ISO-format triangular indexable insert for external and internal turning, designed for applications with elevated breakout risk and interrupted cuts.

• PVD-coated carbide AH6235 optimised for stainless steels
• Designed for interrupted cuts and high breakout risk
• Triangular ISO insert, size 09, 60° included angle
• 11° relief and 0.4 mm corner radius for consistent profiles
• Cylindrical hole with 40°–60° countersink for secure clamping

Increased productivity through longer tool life

The combination of a PVD-coated surface and a tougher carbide grade delivers extended tool life when machining demanding materials. The AH6235 composition is formulated for a balance between toughness and wear resistance, which helps to withstand micro‑fracture and edge chipping in unstable cutting conditions. Reduced frequency of insert changes reduces downtime and contributes to a smoother production flow, making the solution particularly suitable for batch processes and mixed production runs.

Secure clamping and dimensional stability for predictable results

The ISO triangular format with a cylindrical hole and one-sided countersink (40°–60°) ensures repeatable seating and torque transmission when used with compatible holders. The 11° relief angle and 2.38 mm plate thickness provide stable support under cut loads, while the 60° included angle of the triangle offers versatility across external and internal turning operations. The standardised geometry simplifies holder selection and replacement, reducing preparation time for new set-ups.

Consistent machining of stainless steels and interrupted cuts

Designed specifically for tougher materials, the insert’s single-sided chipbreaker and rounded 0.4 mm corner radius promote controlled chip formation and better edge resilience during interrupted cuts. The tougher grade is less prone to chipping in conditions with variable engagement, which helps maintain surface finish and dimensional accuracy across successive indexings. Where chip ejection and thermal sensitivity are concerns, the PVD coating supports reduced built-up edge and improved surface integrity.

Practical system guidance for integration and selection

The insert is intended to be used as part of a system comprising the indexable insert plus a matching external holder, underlay/clamp set and spare screws. Selection of the correct chipbreaker and grade depends on workpiece material, cut type and machine stability: a tougher grade and single‑side chipbreaker suit interrupted or unstable cuts, while stable, continuous cuts may allow more wear‑resistant alternatives. For efficient implementation, match the insert’s form, relief, tolerance class, fastening style, size and thickness to the chosen holder to ensure secure clamping and predictable performance.

Contact Metav Werkzeuge for a technical consultation on Tungaloy TPMT090204 inserts and to arrange matching holders or spare clamping sets; email info@metav-werkzeuge.com or call +49 2822 7131930 for rapid assistance.

Technical data

• Article number: 6890199-Tungaloy
• Manufacturer article number: 6890199
• Manufacturer SKU: TUN6890199
• Model series: ISO turning indexable inserts
• Material: Carbide
• Grade: AH6235
• Coating: PVD

Core specifications

• Included angle: 60°
• Relief angle: 11°
• Corner radius: 0.4 mm
• Thickness: 2.38 mm
• Size: 09
• Hole style: Cylindrical hole + one-sided countersink (40°–60°)

Design & features

• Triangular insert (ISO 090204)
• Single-sided chipbreaker
• System components: insert, matching holder, underlay/clamp set, spare screws
• Optimised for stainless steels and interrupted cuts
• ISO compatibility determined by form, relief, tolerance, fastening, size and thickness
• Suitable for external and internal turning

FAQ

What materials is this insert best suited for? The insert is formulated to perform well on stainless steels and similar tough materials; the AH6235 grade and PVD coating improve resistance to chipping in such applications.

Is the insert suitable for interrupted cutting operations? Yes, the tougher carbide grade and single-sided chipbreaker make this insert appropriate for interrupted cuts and situations with increased breakout risk.

How does the clamping system ensure repeatable positioning? The cylindrical hole with a one-sided countersink (40°–60°) provides secure seating and torque transfer when paired with the correct ISO-compatible holder, supporting repeatable positioning.

What role does the 0.4 mm corner radius play in performance? The 0.4 mm radius increases edge strength and helps maintain consistent workpiece profiles while reducing the likelihood of edge chipping under fluctuating engagement.

Which components are required to build a complete tool system? A complete machining system includes the indexable insert, a matching external holder or boring bar, an underlay/clamp set and appropriate replacement screws for secure fastening.

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.