DCMT11T308-MM4 WMP20G MM4 Wendeplatten - Walter Tools

Benefit from the combination of Tiger·tec Gold technology, the WMP20G grade and a 0.8 mm corner radius for dependable chip control and prolonged tool life; order the insert directly via Metav Werkzeuge or contact our consultants for application advice.

DCMT11T308-MM4 WMP20G turning insert for stainless steels – Walter Tools, Tiger·tec Gold, 7° clearance

The DCMT11T308-MM4 WMP20G is a rhombic 55° indexable turning insert designed for reliable machining of stainless steels under medium to robust conditions.

• Tiger·tec Gold coating for long tool life
• Designed for stainless steels (ISO M group)
• Rhombic 55° form with 0.8 mm corner radius
• MM4 chipbreaker for stable chip control

Stable performance on stainless steels for consistent production

The insert delivers consistent cutting performance when machining stainless steels, a group of materials prone to work hardening and built-up edge. The combination of the WMP20G grade and the Tiger·tec Gold coating supports stable chip formation and reduces edge wear, which translates into fewer tool changes and steadier cycle times. For users seeking predictable results in serial production, this indexable insert provides the technical basis for improved process reliability without complex parameter adjustments.

Coating and grade explained for longer tool life

The Tiger·tec Gold technology refers to a multi-layer coating system applied to a hardmetal substrate; it is engineered to resist abrasive wear and thermal impact during turning of stainless materials. The WMP20G grade identifies a coated carbide formulation optimised for M‑group applications, combining toughness with abrasion resistance. In practice, this means the insert maintains a sharper, more durable cutting edge under the intermittent heat and strain typical of stainless‑steel turning, helping to extend tool life and maintain part tolerances.

Geometry that supports chip control and surface finish

The Rhombic 55° form, paired with a 0.8 mm corner radius and a 7° clearance, balances strength at the cutting edge with the ability to produce a controlled chip. The MM4 chipbreaker is tailored to compact and direct chips away from the cutting zone, lowering the risk of entanglement and improving surface quality. For shops focused on repeatable part finish and minimal secondary operations, the insert geometry reduces reliance on trial‑and‑error set‑ups and supports stable cutting conditions.

Practical application and process guidance for machinists

This indexable insert suits a range of stainless‑steel applications, from medium finishing to more robust turning tasks. For best results, combine the insert with appropriate cutting parameters for the chosen stainless grade and ensure rigid clamping and correct coolant strategy where applicable. The ISO designation and the clear specification of form and radius simplify tool selection and inventory management, enabling machining engineers to match the insert with tool holders and cutting strategies efficiently.

Contact Metav Werkzeuge today to specify the Walter Tools DCMT11T308-MM4 WMP20G turning insert and arrange personalised process support based on the Tiger·tec Gold advantages

Technical Data

• Article number: DCMT11T308-MM4-WMP20G-WALTER
• Label: Drehwendeschneidplatte DCMT11T308-MM4 WMP20G Walter Tools
• Product type: Drehwendeschneidplatte
• Manufacturer: Walter Tools

Core specifications

• Plate size: 11 mm
• Clearance angle: 7°
• Corner radius: 0.8 mm
• Plate thickness: T3
• Plate form: Rhombic 55°

Special features

• Grade: WMP20G
• Series: Tiger·tec Gold
• Chipbreaker: MM4
• Material group: M (stainless steels)
• Tolerance class: M
• Execution: T
• ISO designation: DCMT11T308-MM4 WMP20G

FAQ

What materials is this insert intended for?
The DCMT11T308-MM4 WMP20G turning insert from Walter Tools is specified for stainless steels (ISO M group) and performs well under medium to robust cutting conditions.

How does the Tiger·tec Gold coating improve performance?
The Tiger·tec Gold coating on the WMP20G grade enhances wear resistance and thermal stability, helping the insert retain its cutting edge longer during stainless‑steel turning operations.

What does the MM4 chipbreaker provide in practice?
The MM4 chipbreaker promotes compact, controlled chips and improved evacuation from the cutting zone, which supports surface quality and reduces the chance of chip interference.

Is the geometry suitable for finishing and roughing?
With a Rhombic 55° form and a 0.8 mm corner radius, the insert balances edge strength and finish capability; it is suitable for medium finishing and more robust turning tasks depending on the chosen parameters.

Which ISO designation should be used when ordering replacement inserts?
Order using the ISO designation DCMT11T308-MM4 WMP20G or the article number DCMT11T308-MM4-WMP20G-WALTER to ensure correct replacement.

The Walter AG (brand appearance: Walter Tools) is part of the Sandvik Group. Protected trademarks and product names are the property of their respective owners. Brand names are used for explanation only and indicate original, factory‑new goods of the manufacturer.

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