CNMG120412-MM5 WSM30S MM5 Wendeplatten - Walter Tools

Benefit from the combination of Tiger·tec Silver coating, the MM5 chipbreaker and a 0° negative rake for stable, economical machining of stainless steels and superalloys. Order the CNMG120412-MM5 WSM30S directly via Metav Werkzeuge or ask our consultants if needed.

CNMG120412‑MM5 WSM30S indexable turning insert — Tiger·tec Silver, for stainless steels and superalloys (Walter Tools)

CNMG120412‑MM5 WSM30S is a rhombic 80° indexable insert designed for demanding turning operations in heat‑resistant alloys and rostfreier Stahl.

• Tiger·tec Silver coated carbide grade WSM30S
• For stainless steels and superalloys (ISO M/S)
• Rhombic 80° insert with 1.2 mm nose radius
• 0° negative rake for secure cutting edge

High edge stability for demanding materials

The combination of the Tiger·tec Silver coating with the WSM30S grade provides high thermal resistance and improved wear behaviour when machining tough materials. Coated carbide improves heat shielding of the cutting edge and reduces adhesion tendencies that cause built‑up edge in rostfreier Stahl and superalloys. This results in more predictable tool life and fewer unscheduled tool changes, supporting continuous production and lower unit costs.

Reliable chip management and improved surface finish

The MM5 chipbreaker geometry controls chip formation for many turning tasks, turning continuous or segmented swarf into manageable shapes and reducing the risk of surface damage. The rhombic 80° platform combined with a 1.2 mm nose radius supports a good balance between profile strength and surface quality. The 0° negative rake secures the cutting edge under heavy engagement, which is beneficial for operations where stability is more important than light finishing cuts.

Easy integration and consistent productivity

Designed for established tooling systems, the insert fits common CNMG tool holders and adapts well to standard lathe setups. The robust geometry and coating deliver consistent performance across series production, reducing process variation and rework. For shops prioritising throughput and repeatability, this insert offers a cost‑effective way to tackle rostfreier Stahl and heat‑resistant alloys while maintaining surface integrity and predictable tool wear.

Contact Metav Werkzeuge today to discuss cutting data, compatible holders and order options for Tiger·tec Silver inserts — our specialists at Metav Werkzeuge are ready to provide application advice and delivery information.

Technical data

• SKU: CNMG120412-MM5-WSM30S-WALTER
• Designation: CNMG120412-MM5 WSM30S
• Series: Tiger‑tec Silver
• Manufacturer: Walter Tools

Core dimensions

• Insert size: 12
• Nose radius: 1.2 mm
• Thickness: 04
• Insert shape: Rhombic 80°
• Free rake: 0° (negative)

Features & materials

• Coating: Tiger·tec Silver
• Grade: WSM30S
• Chipbreaker: MM5
• Tolerance class: M
• Material suitability: stainless steels (M), superalloys/titanium (S)
• Application focus: heavy and difficult turning operations

FAQ

What materials is this insert suitable for?
The CNMG120412‑MM5 WSM30S insert is designed for rostfreier Stahl and heat‑resistant superalloys; the WSM30S grade and Tiger·tec Silver coating improve edge stability on these groups.

What does the MM5 chipbreaker do?
The MM5 chipbreaker on this Walter Tools insert promotes controlled chip formation to protect the workpiece surface and ease chip evacuation in continuous turning operations.

Is the insert compatible with standard CNMG tool holders?
Yes, the CNMG120412‑MM5 designation indicates a standard CNMG geometry and is compatible with conventional CNMG tool holders used in turning applications.

Why choose a 0° negative rake?
A 0° negative rake increases cutting edge strength and reduces the tendency for edge chipping under heavy cuts; this is particularly useful when machining tough materials like rostfreier Stahl.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected product names are mentioned for explanatory purposes only. There is no affiliation between our company and the named brands. The offered item is original and brand‑new from the manufacturer (Walter Tools).