SCMT 120404 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of high process stability, a sharp yet durable cutting edge and ISO compatibility to increase throughput in stainless steel turning operations. Order SCMT120404 AH6225 inserts through Metav Werkzeuge for reliable delivery, or consult the team for selection support and optimisation.

SCMT120404 AH6225 turning insert — Tungaloy, 7° relief, 0.4 mm radius

The SCMT120404 AH6225 is an ISO-format turning insert designed for external and internal turning of stainless steel, combining a sharp cutting edge with a stable grade for variable machining conditions.

• ISO-format square insert SCMT120404
• PVD-coated carbide for stainless steel
• 7° relief and 0.4 mm corner radius
• Cylindrical hole with 40°–60° countersink

Consistent machining performance with a universal grade

The AH6225 grade is a PVD-coated carbide developed for reliable performance on stainless steel, delivering a sharp yet stable cutting edge under medium cutting depths and intermittent conditions. This balance reduces the need for immediate feed or speed adjustments when batch variables change, which supports predictable cycle times. The coating improves wear resistance, while the substrate maintains edge form, so the insert sustains consistent surface finish without frequent index changes.

Geometry that lowers cycle times and improves surface quality

Precision geometry is central to reducing set-up and machining time: the square 12 mm format with an included angle of 90°, 7° relief and a 0.4 mm corner radius concentrates cutting forces and supports stable engagement. The 4.76 mm thickness increases stiffness in clamping, helping to damp vibrations during interrupted cuts. Together, these geometric features enhance chip formation and contribute to a smoother finish on turned components, especially when switching between roughing and light finishing passes.

Coating and chip control for repeatable results

A PVD-coated carbide grade combined with a single-sided chipbreaker provides controlled chip flow and long tool life for variable stainless steel applications. The chipbreaker design aids evacuation in external and internal turning, lowering the risk of built-up edge and keeping cycle reliability high. This means fewer unscheduled tool changes and more consistent part quality, which benefits production planning and reduces overall machining cost per part.

ISO compatibility and secure clamping for quick integration

The insert follows ISO standards, so compatibility with external holders or boring bars is determined by form, relief angle, tolerance class, fixing method, size and thickness. The cylindrical hole with a single-side countersink (40°–60°) ensures secure clamping in many common clamping systems. As part of a system approach — insert, clamping set and screw — the component integrates into existing toolholders with minimal adaptation, supporting fast tool changes and reduced downtime.

Contact Metav Werkzeuge for procurement and technical advice on Tungaloy SCMT120404 AH6225 inserts for stainless steel turning — email info@metav-werkzeuge.com or call +49 2822 7131930 for immediate assistance and fast dispatch

Technical data

• Article number: 6903305
• SKU: 6903305-Tungaloy
• Manufacturer SKU: TUN6903305
• Model series: ISO-Drehwendeschneidplatten
• Material: Hartmetall
• Grade/coating: AH6225 (PVD)

Facts

• Insert size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.4 mm
• Relief angle: 7°
• Included angle: 90°
• Manufacturer article number: 6903305

Special features

• Square insert, ISO-format
• Single-sided chipbreaker
• Cylindrical hole + one-sided countersink (40°–60°)
• PVD-coated carbide grade
• Suited to stainless steel machining
• Compatible with external holders and boring bars

FAQ

Which materials is this insert suitable for? The SCMT120404 AH6225 is optimised for stainless steel; the AH6225 PVD-coated carbide provides a balance of edge stability and wear resistance for medium cutting conditions.

What kind of machining is the chipbreaker designed for? The single-sided chipbreaker supports both external and internal turning operations, promoting reliable chip control during interrupted cuts and variable feeds with the SCMT120404 AH6225.

Which geometric features improve surface finish and tool life? Key design elements such as the 7° relief, 0.4 mm corner radius and 4.76 mm thickness reduce vibration and favour consistent chip formation, which helps to sustain surface quality and extend the tool’s effective life.

How is the insert secured in the toolholder? The insert uses a cylindrical hole with a single-side countersink (40°–60°) for positive clamping; compatibility is governed by form, relief angle, tolerance class, fixing method, size and thickness typical for ISO-format inserts.

Is the grade coated and what are the benefits? The AH6225 grade is a PVD-coated carbide offering improved wear resistance and stable cutting-edge behaviour, designed to maintain performance in the demanding conditions of stainless steel machining.

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.