TPMT 090202 AH725 Wendeplatten - Tungaloy

Benefit from a PVD-coated AH725 grade offering broad material coverage and reliable chip control, combined with a 0.2 mm corner radius and ISO-standard triangular geometry for stable external and internal turning. Order directly via Metav Werkzeuge or consult our specialists for application-specific guidance.

TPMT 090202 AH725 Tungaloy turning insert — PVD-coated carbide, 0.2 mm radius

The TPMT 090202 AH725 is an ISO-standard triangular turning insert designed for robust external and internal turning of steel and stainless steel, featuring a one-sided chipbreaker and a cylindrical hole with single-sided countersink for secure clamping.

• PVD-coated AH725 universal grade
• 60° triangular geometry with 0.2 mm radius
• Cylindrical hole with single-sided countersink
• ISO-standard fit for external and internal turning

Stable machining for steels and stainless steels

The AH725 grade is a PVD-coated, wear-resistant cemented carbide developed for universal performance across steel and stainless steel workpieces. Its formulation and coating provide a balance between toughness and edge stability, which reduces the risk of chipping during interrupted cuts or when machining mixed batches of materials. The combination of grade and coating supports consistent surface quality and predictable tool life, making it a practical choice where process security and repeatability are priorities in production turning.

Precise geometry and secure clamping for reliable results

The insert’s 60° triangular form and 0.2 mm corner radius are optimised for finishing and general-purpose turning, enabling controlled engagement and clearances in common holder systems. The plate is ISO-standard in size (09) with a thickness of 2.38 mm, and the cylindrical hole with a single-sided countersink (40°–60°) ensures a repeatable, torque-resistant fit to compatible holders. Compatibility depends on form, free angle, tolerance class, fastening method, size and thickness; matching the insert to a suitable external holder or boring bar and the correct clamping set is essential for consistent performance.

Improved chip control and process reliability

Equipped with a one-sided chipbreaker, the insert promotes effective chip formation and evacuation under a range of cutting conditions, reducing re-cutting and thermal loading on the edge. The small corner radius delivers a fine edge for good surface finish while still providing sufficient strength for interrupted cuts on smaller tools or less rigid setups. This balance of features enhances productivity by lowering the risk of unexpected tool failure and by supporting calmer vibration behaviour during turning operations.

System approach and application advice

The insert is intended to function as part of a system: ISO-standard turning insert, a matched external holder or boring bar, suitable shim/clamp set and replacement screws. Selection of the correct chipbreaker and grade should be guided by the workpiece material, machining operation and toolholder stability. For mixed-material batches or applications demanding high process reliability, the AH725 grade offers broad applicability and consistent edge life, reducing frequent tool changes and downtime.

Contact Metav Werkzeuge today for application support or to request the TPMT 090202 AH725 for turning operations — email info@metav-werkzeuge.com or call +49 2822 7131930 for tailored advice

Technical Data

• Article number: 6856672
• Manufacturer SKU: TUN6856672
• SKU: 6856672-Tungaloy
• Model series: ISO turning inserts
• Material: cemented carbide
• Grade/coating: AH725, PVD-coated

Facts

• Insert designation: TPMT090202
• ISO code: 090202
• Corner radius: 0.2 mm
• Included angle: 60°
• Rake angle: 11°
• Plate thickness: 2.38 mm
• Plate size: 09

Special features

• Triangular plate form
• Cylindrical hole with single-sided countersink (40°–60°)
• Single-sided chipbreaker
• Designed for external and internal turning
• Compatible with ISO-standard holders
• Universal, break-resistant grade for steel and stainless steel

FAQ

What materials is this insert suitable for?
The AH725 grade and PVD-coated cemented carbide substrate make the insert suitable for machining steel and stainless steel, with a universal, break-resistant performance profile.

How does the TPMT 090202 secure to the holder?
The cylindrical hole with single-sided countersink provides a torque-resistant clamping interface; compatibility is determined by holder form, free angle, tolerance class and plate thickness.

When should the one-sided chipbreaker be chosen?
The one-sided chipbreaker on this insert improves chip control in general turning tasks and is especially useful when stable chip flow and reduced re-cutting are required.

Is the insert suitable for both external and internal turning?
Yes; the ISO-standard triangular geometry and available holder systems allow use in both external and internal turning applications when paired with a compatible external holder or boring bar.

What benefit does the 0.2 mm corner radius provide?
A 0.2 mm corner radius balances edge strength and surface finish, offering a fine edge for finishing while maintaining resistance to edge chipping in modestly interrupted cuts.

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.