CNMG160608-MM5 WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the MM5 chipbreaker for reliable machining of stainless steels and heat‑resistant alloys; the result is stable chip formation and extended tool life. Order the insert directly via Metav Werkzeuge or consult the technical team for cutting data and toolholder recommendations.

CNMG160608-MM5 WSM20S turning indexable insert — 0.8 mm nose radius, Rhombic 80° (Walter Tools)

CNMG160608-MM5 WSM20S is a Rhombic 80° turning indexable insert designed for heavy-duty finishing and semi‑finishing of stainless steels and heat‑resistant superalloys, featuring a negative 0° rake for stable cutting conditions

• Tiger·tec Silver coated grade WSM20S
• Robust MM5 chipbreaker for secure chip control
• Negative 0° rake for high process stability
• 0.8 mm nose radius, Rhombic 80° form

High process security for demanding materials

The CNMG160608‑MM5 WSM20S insert combines the Tiger·tec Silver coating with a specially developed carbide grade to deliver consistent wear resistance under thermal and mechanical load. The coating reduces friction and supports elevated cutting temperatures, which is particularly beneficial when turning stainless steels and superalloys that tend to harden at the cutting edge. With the negative 0° rake geometry, the insert favours a stable cutting action and lowers the risk of built‑up edge formation, translating into fewer interruptions and more predictable cycle times.

Reliable chip control that protects the tool and workpiece

Equipped with the MM5 chipbreaker and a 0.8 mm nose radius, this insert promotes controlled chip segmentation and evacuation. Controlled chips reduce tool‑holder vibration and help to protect the machined surface, producing a reproducible finish even in challenging alloys. The Rhombic 80° shape ensures versatile engagement angles for a range of turning operations, while the chipbreaker geometry assists in maintaining a constant cutting force—this yields a tangible improvement in process reliability and component quality.

Economic advantages through durability and repeatability

Investing in a coated, application‑focused grade such as WSM20S provides a cost‑effective route to longer tool life and fewer indexings. The combination of coating technology and substrate metallurgy in this series results in steady flank wear behaviour, which aids predictable tool change schedules and reduces scrap rates. For production environments where repeatability and uptime matter, the insert supports shorter setup cycles and more consistent part tolerances, improving overall throughput and lowering unit costs.

Practical application and machine integration

The insert is suitable for tools compatible with the CNMG geometry and is recommended for operations that prioritise surface integrity and dimensional stability. It addresses ISO groups M (stainless steels) and S (heat‑resistant superalloys and titanium) as primary application areas, providing a versatile solution for both aerospace and energy sector components. For optimal results, pair the insert with a rigid toolholder and an appropriate coolant strategy; cutting data should be adapted to machine stiffness and workpiece characteristics.

Contact Metav Werkzeuge for tailored cutting data, toolholder matching and rapid supply of the CNMG160608‑MM5 WSM20S insert to suit specific production needs

Technical data

• Article number: CNMG160608-MM5-WSM20S-WALTER
• Designation: CNMG160608-MM5 WSM20S
• Product type: Turning indexable insert (Drehwendeschneidplatte)
• Brand: Walter Tools
• Series: Tiger‑tec Silver

Core data

• Nose radius: 0.8 mm
• Insert size: 16 (wpl_plattengroe: 16)
• Thickness: 06
• Relief angle: 0° (negative)
• Tolerance class: M

Special features

• Grade: WSM20S (Tiger·tec Silver coated carbide)
• Chipbreaker: MM5
• Shape: Rhombic 80°
• Substrate/application: S / M (heat‑resistant superalloys / stainless steels)
• Execution: G
• Base designation: CNMG160608-MM5

FAQ

What materials is this insert best suited for?
The CNMG160608‑MM5 WSM20S insert is designed primarily for stainless steels (ISO M) and heat‑resistant superalloys/titanium (ISO S), where thermal stability and secure chip control are required.

How does the Tiger·tec Silver coating benefit machining?
The Tiger·tec Silver coating on the WSM20S grade reduces friction and improves thermal resistance, which prolongs tool life and stabilises cutting conditions in difficult‑to‑cut materials.

What is the purpose of the MM5 chipbreaker?
The MM5 chipbreaker provides controlled chip segmentation and evacuation, lowering vibration and protecting both the tool and the workpiece finish during turning operations.

Can the insert be used for finishing and semi‑finishing?
Yes, the Rhombic 80° geometry and the 0.8 mm nose radius make this insert suitable for both finishing and semi‑finishing tasks, offering a balance between strength and surface quality.

Is the negative 0° rake suitable for heavy interrupted cuts?
The negative 0° rake increases edge strength and is advantageous for stable performance under high cutting forces and mild interruptions, improving process security.

Manufacturer: Walter Tools; Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

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