SCMT09T304-FM4 WMP20G Wendeplatten - Walter Tools

Choose the combination of Tiger·tec Gold coating and the FM4 chipbreaker for confident machining of stainless steels; the square 90° form with a 0.4 mm nose radius supports a stable cutting edge and consistent surface quality. Order the SCMT09T304-FM4 WMP20G directly via Metav Werkzeuge or ask the consultants for tailored application advice.

SCMT09T304-FM4 WMP20G turning insert, square 90°, for stainless steels — Walter Tools

A SCMT09T304-FM4 WMP20G indexable turning insert engineered for medium to robust stainless-steel turning, combining a Tiger·tec Gold grade with a dedicated chipformer for reliable swarf control.

• Tiger·tec Gold coated carbide grade WMP20G
• Square 90° geometry for edge stability
• FM4 chipbreaker optimised for stainless steels
• 0.4 mm nose radius for consistent surface finish

High process reliability through tailored grade and coating

The insert’s WMP20G grade, part of the Tiger·tec Gold family, offers a coated carbide combination developed for the specific demands of stainless steels. This results in improved edge stability under the high temperatures and work-hardening tendencies typical of these materials. In practical terms, the specialised coating reduces adhesion and supports predictable wear behaviour, which contributes to longer tool life and fewer unplanned tool changes — a direct benefit for shop-floor productivity.

Stable cutting performance from geometry and chip control

The square 90° configuration and the modest 0.4 mm nose radius provide robust support at the cutting edge, reducing the risk of chipping during interrupted cuts or heavier radial engagement. Combined with the FM4 chipbreaker, this geometry ensures controlled chip formation and evacuation when turning stainless steels, helping to avoid built-up edge and improve surface consistency. The design enables stable turning under varying depths of cut and feed rates.

Clear advantages for workshop efficiency

Using this insert supports a pragmatic balance between productivity and reliability: the coated grade and chip control help maintain cutting parameters for longer periods, which can lead to fewer tool changes and reduced downtime. The solid build and proven coating technology mean fewer surprises in process planning, enabling confident selection of cutting conditions for a range of stainless-steel grades per ISO M classifications.

Application guidance and practical use cases

The insert is suited to external turning operations on a variety of stainless steels, including typical martensitic and austenitic grades that require careful management of heat and chip formation. Typical tasks include semi-finish and finish turning where consistent surface quality and repeatable tool life are priorities. For best results, pair the insert with appropriate coolant strategies and adjust feeds to match the nose radius and edge preparation.

For production environments requiring dependable stainless-steel performance, choose the Walter Tools WMP20G grade and contact Metav Werkzeuge for specific machining recommendations at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• SKU: SCMT09T304-FM4-WMP20G-WALTER
• Designation: SCMT09T304-FM4 WMP20G
• Manufacturer: Walter Tools

Facts

• Clearance angle: 7°
• Nose radius: 0.4 mm
• Plate size: 09
• Thickness: T3
• Shape: Square 90°

Special features

• Grade: WMP20G (Tiger·tec Gold)
• Chipbreaker: FM4
• Coated carbide
• Application: stainless steels (ISO M)
• Series: Tiger·tec Gold

FAQ

What materials is this insert intended for?
The SCMT09T304-FM4 WMP20G turning insert from Walter Tools is designed primarily for stainless steels (ISO M), offering improved chip control and edge life in such materials.

How does the FM4 chipbreaker help in machining?
The FM4 chipbreaker on the Walter Tools insert promotes controlled chip formation during turning of stainless steels, reducing the likelihood of built-up edge and aiding chip evacuation for safer, more stable machining.

Which cutting conditions suit the 0.4 mm nose radius best?
A 0.4 mm nose radius is ideal for achieving a balance between surface finish and strength; the Walter Tools insert performs well at moderate feeds and finishing to light semi-finishing cuts where consistent surface quality is required.

Is this insert suitable for interrupted cuts?
The square 90° geometry and robust grade of the SCMT09T304-FM4 WMP20G support resistance to chipping during interruptions, making it appropriate for applications with occasional interruptions or variable engagement.

Manufacturer: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany

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