DNMG150404-MM5 WMP20S WMP20S Wendeplatten - Walter Tools

Take advantage of the proven combination of Tiger‑tec Silver coating and the WMP20S grade for reliable machining of stainless steel, together with the MM5 chipbreaker for stable chip control; order the insert directly via Metav Werkzeuge or ask the Metav consultants for application advice.

DNMG150404-MM5 WMP20S turning insert — rhombic 55° for stainless steel, Walter Tools

DNMG150404-MM5 WMP20S is a negative‑rake turning insert designed for medium to robust machining of stainless steel in interrupted and continuous cuts

• Tiger‑tec Silver coating for longer edge life
• WMP20S grade tuned to stainless steel machining
• MM5 chipbreaker for stable chip formation
• Rhombic 55° geometry for versatile turning

Built for consistent performance in stainless applications

The combination of the Tiger‑tec Silver coating and the WMP20S grade delivers a reliable solution when machining stainless steel. The advanced coating enhances thermal and wear resistance, which helps to maintain a stable cutting edge under the high temperatures typical for austenitic and other stainless alloys. As a consequence, tool life is improved and process variability is reduced, enabling more predictable cycle times and lower overall machining costs. The negative relief angle of 0° contributes to robust cutting edge support when facing tougher operational conditions.

Predictable chip control and surface quality with MM5

The MM5 chipbreaker is optimised for the challenges of stainless machining: it promotes short, manageable chips and reduces the risk of built‑up edge formation. This directly benefits surface finish and reduces secondary operations. The modest corner radius of 0.4 mm supports a balance between edge strength and fine surface results, making the insert suitable for both finishing passes and light semi‑finishing where dimensional accuracy matters. Stable chip formation also improves tool condition monitoring and reduces unexpected downtime.

Versatile geometry for day‑to‑day turning needs

The rhombic 55° insert shape offers flexibility across a wide range of turning tasks, from profiling to light shoulder work. The plate thickness designation 04 and the DNMG form factor ensure compatibility with common toolholders used in industry, allowing quick tool changes and reduced setup time. The negative rake configuration gives the insert greater resistance to edge chipping in tougher cuts, which supports higher reliability in mixed batch production and when machining parts with variations in wall thickness or interrupted features.

Practical benefits for production workflows

Adopting this insert yields immediate operational advantages: improved tool life through coating technology, consistent chip behaviour thanks to the chipbreaker design, and broad applicability across stainless steel grades. These benefits translate into fewer tool changes, less scrap from poor surface finish, and smoother process chains. For production planners and shopfloor technicians, the predictable performance of this insert helps to stabilise machining parameters and simplifies tooling inventory, particularly when standardising on Tiger‑tec Silver‑coated grades.

Contact Metav Werkzeuge for tailored recommendations on Walter Tools turning inserts and secure optimised results for stainless steel machining

Technical data

• SKU: DNMG150404-MM5-WMP20S-WALTER
• Article designation: DNMG150404-MM5 WMP20S
• Series: Tiger‑tec Silver
• Grade: WMP20S
• Manufacturer: Walter Tools
• Product type: Drehwendeschneidplatte
• Execution: G
• Plate form: Rhombus 55°
• Plate size: 15
• Plate thickness: 04
• Corner radius: 0.4
• Relief angle: 0° (negativ)
• Chipbreaker: MM5
• Material group: M
• Suitable for: stainless steel

Numbers / Core technical data

• Corner radius: 0.4 mm
• Relief angle: 0° (negative)
• Plate size: 15
• Plate thickness: 04
• Shape angle: 55°
• SKU: DNMG150404-MM5-WMP20S-WALTER

Designs / Special features

• Coating technology: Tiger‑tec Silver
• Grade characteristics: WMP20S, coated carbide
• Application focus: stainless steel, medium to robust conditions
• Chip control: MM5 chipbreaker
• Geometry: rhombic insert for versatile turning
• Series note: optimised for stable chip formation and edge life

FAQ

What materials is this insert designed for?
The insert is designed primarily for machining stainless steel; the WMP20S grade and Tiger‑tec Silver coating support stable cutting in these alloys.

How does the MM5 chipbreaker affect cutting performance?
The MM5 chipbreaker promotes controlled chip formation during turning, which improves surface finish and reduces the likelihood of built‑up edge when cutting stainless steel.

Is the DNMG150404‑MM5 form compatible with standard toolholders?
Yes, the DNMG150404 form factor and thickness designation 04 are commonly supported by industry toolholders for rhombic 55° inserts.

What advantages does the Tiger‑tec Silver coating provide?
Tiger‑tec Silver enhances thermal resistance and wear protection, leading to longer tool life and more consistent edge condition under elevated cutting temperatures.

Can this insert be used for finishing as well as semi‑finishing?
With a 0.4 mm corner radius and the MM5 chipbreaker, the insert is suitable for finishing and light semi‑finishing operations in stainless steel applications.

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

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