WNMG080404-MM5 WMP20S WMP20S Wendeplatten - Walter Tools

Take advantage of the combination of high process security and excellent wear resistance provided by the WMP20S grade in the Tiger·tec Silver series, and benefit from consistent chip control thanks to the MM5 chipbreaker and Trigon 80° geometry. Order the insert through Metav Werkzeuge or contact the consultants for application advice to ensure optimal integration into the production process.

WNMG080404-MM5 WMP20S — turning insert by Walter Tools (Tiger·tec Silver, for stainless steel)

The WNMG080404-MM5 WMP20S is a Trigon 80° turning insert with a Tiger·tec Silver coated-carbide grade designed for reliable machining of stainless steel under medium to robust conditions.

• Tiger·tec Silver coating for increased wear resistance
• Optimised for stainless steel machining
• Trigon 80° shape, 0.4 mm corner radius
• MM5 chipbreaker for secure chip control

Increased production reliability through targeted coating and grade

The Tiger·tec Silver coating combined with the WMP20S carbide grade delivers a notable improvement in wear resistance and thermal stability compared with uncoated solutions. This results in longer cutting edge life under the higher temperatures typical of stainless steel machining, reducing downtime for tool changes and supporting steady production cycles. The chemistry and multilayer structure of the coating promote stable chip formation and help to avoid edge build-up, which is particularly beneficial when working with tougher, heat‑generating alloys.

Secure chip control and geometry that supports process stability

The Trigon 80° geometry and MM5 chipbreaker are designed to produce predictable chips and reduce the risk of tangles or built-up edge during continuous turning operations. The 0.4 mm corner radius offers a balance between edge strength and cutting performance, improving surface finish without compromising tool life. The insert’s negative 0° relief angle supports robust plunge cuts and interrupted cutting, giving consistent results in automated turning centres and heavy-duty applications.

Practical integration for shop-floor efficiency

As an indexable insert in the Tiger·tec Silver series, this item fits common toolholder systems and can be introduced into existing turning processes with minimal adjustment. The standardised WNMG080404-MM5 designation simplifies tooling lists and reordering, while the dedicated chip geometry reduces the need for frequent process tuning. For operations shifting to higher spindle speeds or more aggressive feeds, the coated carbide composition maintains edge integrity, enabling operators to favour productivity gains with controlled tool wear.

Application guidance and typical use cases

The insert is primarily intended for machining stainless steel grades (ISO group M) and performs well where material toughness, tendency to form built-up edge and heat generation are critical factors. Typical applications include shaft turning, fitting surfaces and medium‑to‑heavy stock removal in batch and series production. Selecting the correct grade and chipbreaker combination supports consistent surface quality and repeatable dimensional accuracy, helping to meet tight tolerances in demanding components.

For machining stainless steel with improved tool life and reliable chip control, consider the Walter Tools Tiger·tec Silver WMP20S grade — contact Metav Werkzeuge for procurement and tailored machining recommendations via info@metav-werkzeuge.com or by phone at +49 2822 7131930.

Technical data

• SKU: WNMG080404-MM5-WMP20S-WALTER
• Designation: WNMG080404-MM5 WMP20S
• Brand: Walter Tools
• Product type: Turning insert

Key specifications

• Insert size: 08
• Thickness code: 04
• Corner radius: 0.4 mm
• Relief angle: 0° (negative)

Materials & features

• Coating: Tiger·tec Silver
• Grade: WMP20S (coated carbide)
• Chipbreaker: MM5
• Shape: Trigon 80°
• Suitable for: stainless steel (ISO M)

FAQ

What materials is this insert intended for?
The WNMG080404-MM5 WMP20S insert and its Tiger·tec Silver grade are optimised for stainless steel (ISO group M), supporting secure chip formation and reduced edge build‑up.

How does the MM5 chipbreaker affect machining?
The MM5 chipbreaker provides controlled chip segmentation and evacuation, improving process stability and reducing the risk of chip-related interruptions during turning.

Is the Trigon 80° shape suitable for roughing or finishing?
The Trigon 80° geometry with a 0.4 mm corner radius balances edge strength and surface finish, making the insert suitable for medium to robust roughing and for many finishing passes when paired with appropriate feeds.

Can this insert be used in automated turning centres?
Yes, the standardised designation and robust coated-carbide grade make the insert well suited to automated environments, where consistent edge life and repeatable chip behaviour are required.

What is the main advantage of the Tiger·tec Silver coating?
The Tiger·tec Silver coating enhances thermal resistance and wear performance, extending cutting edge life under the elevated temperatures typical of stainless steel machining.

Manufacturer/Responsible: Walter Tools GmbH, Derendinger Straße 53, 72072 Tübingen, Germany

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