CNMG190612-MS3 WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of high process security, robust edge geometry and effective chip control for consistent production results; order the inserts directly via Metav Werkzeuge or consult our specialists for application advice.

CNMG190612-MS3 WSM20S Drehwendeschneidplatte — Tiger·tec Silver grade, for stainless steels and superalloys — Walter Tools

The CNMG190612-MS3 WSM20S is a coated carbide indexable turning insert designed for demanding machining of stainless steels and heat‑resistant superalloys, offering a stable cutting edge and controlled chip formation for productive turning operations

• Tiger·tec Silver coating for thermal resistance
• WSM20S grade optimised for M and S materials
• Rhombic 80° CNMG form for versatile turning
• 1.2 mm corner radius for increased edge strength

Consistent chip control and elevated thermal resistance

The WSM20S grade, developed within the Tiger·tec Silver series, combines a wear‑resistant coated carbide substrate with a chipbreaker geometry optimised for ductile and heat‑sensitive materials. This configuration promotes a stable chip formation even under elevated cutting temperatures typical of machining stainless steel and nickel‑based alloys. The MS3 chipbreaker balances shear and breakage, reducing the risk of built‑up edge and enabling more predictable tool life. For production environments where repeatability matters, the insert’s coating and chip control characteristics support steady cycle times and fewer unplanned tool changes.

Geometry designed for robustness and reliable turning

The CNMG 190612 form delivers a robust 80° rhombic shape suited to a wide range of turning tasks, while the negative 0° rake and 1.2 mm corner radius prioritise edge strength for heavier cuts and intermittent engagement. The moderate corner radius enhances resistance to chipping and improves surface finish consistency when compared with sharper geometries. The plate thickness and form factor provide secure clamping and repeatable positioning in standard toolholders, making the insert a practical choice for workshops seeking a blend of durability and versatility in one indexable solution.

Application guidance and process benefits

Classified for ISO groups M and S, the insert is explicitly tailored to stainless steels and heat‑resistant superalloys, where thermal load and material toughness demand specialised grades. The coated carbide composition helps withstand thermal softening, while the insert geometry assists in evacuation of chips and reduction of edge build‑up. When matched with appropriate cutting parameters, this insert supports increased uptime and consistent surface integrity. Walter Tools’ production standards and the Tiger·tec Silver technology together deliver process reliability for serial machining and demanding single‑part production alike.

Contact Metav Werkzeuge today for tailored cutting data and availability of the Walter Tools CNMG190612‑MS3 WSM20S inserts; our technical consultants are reachable at info@metav-werkzeuge.com or +49 2822 7131930 and will advise on the best setup for the intended application

Technical Data

• Article number: CNMG190612-MS3-WSM20S-WALTER
• SKU: CNMG190612-MS3-WSM20S-WALTER
• Product type: Drehwendeschneidplatte (indexable turning insert)
• Brand: Walter Tools
• Series: Tiger·tec Silver
• Grade: WSM20S

Facts

• Insert designation: CNMG190612-MS3 WSM20S
• Shape: Rhombus 80° (CNMG)
• Inscribed circle / size: 19
• Corner radius: 1.2 mm
• Thickness: 06
• Free cutting angle: 0° (negative)
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver (coated carbide)
• Chipbreaker: MS3
• Material suitability: stainless steels (ISO M), superalloys/titanium‑alloys (ISO S)
• Application focus: heavy turning, heat‑resistant materials, demanding surface integrity

FAQ

What materials is this insert suitable for?
The CNMG190612‑MS3 WSM20S insert is designed primarily for stainless steels (ISO M) and heat‑resistant superalloys/titanium‑based materials (ISO S) where thermal resistance and edge stability are critical.

How does the Tiger·tec Silver coating benefit machining?
Tiger·tec Silver enhances thermal resistance and wear protection on the WSM20S grade, supporting more stable cutting edges and longer tool life under the higher temperatures encountered when machining stainless steel and superalloys.

Which chipbreaker should be selected for better surface finish?
The MS3 chipbreaker on this insert balances chip control with shear behaviour; it promotes predictable chipbreaking and can improve surface integrity when paired with suitable feeds and cutting speeds for the processed material.

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

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