TNMG160412-RM5 WSM20S WSM20S Wendeplatten - Walter Tools

Combining the Tiger·tec Silver coating with the RM5 chipbreaker and a 1.2 mm corner radius, this insert is engineered for stable cutting in stainless steels and heat-resistant alloys; order the TNMG160412-RM5 WSM20S directly via Metav Werkzeuge or consult the specialists for machining parameter optimisation

TNMG160412-RM5 WSM20S indexable turning insert by Walter Tools — 1.2 mm radius, 0° negative rake

TNMG160412-RM5 WSM20S is an indexable turning insert designed for heavy-duty machining of stainless steels and superalloys, offering robust edge stability and optimised chip formation for demanding turning tasks

• Tiger·tec Silver coating for higher wear resistance
• Optimised RM5 chipbreaker for stable chip control
• Triangle 60° geometry with 1.2 mm corner radius
• Designed for stainless steels and superalloys

Consistent cutting performance through optimised coating and grade

The combination of Tiger·tec Silver coating and the WSM20S grade provides a balance of wear resistance and edge toughness that supports longer tool life in demanding applications. Coated carbide exhibits a thin, hard protective layer that reduces flank wear and increases thermal stability during interrupted cutting. This results in fewer insert changes and more predictable process windows, which is especially valuable in series production where machine uptime and repeatable surface quality are priorities. The described configuration is suited to operations where tool life and consistent dimensional control matter most.

Stable chip control and edge integrity for difficult-to-machine alloys

The RM5 chipbreaker and the triangular 60° geometry work together to promote controlled chip segmentation and evacuation when machining sticky or heat-generating materials. A 0° negative rake face strengthens the cutting edge, providing higher resistance to mechanical shock and built-up edge formation. The 1.2 mm corner radius improves edge robustness and reduces the risk of premature chipping, while the insert geometry supports a range of feeds and depths of cut typical for turning stainless steels and nickel- or cobalt-based superalloys. The result is predictable chip flow, reduced rework and improved surface finish.

Practical application guidance and process benefits

For practical setup, select cutting parameters that favour stable chip formation and thermal management when using this insert in stainless steels and superalloys. The coated grade adapts to elevated temperatures and supports higher cutting speeds than uncoated grades in many cases; however, adequate coolant strategy and machine rigidity remain essential. The triangular format with three usable cutting edges delivers economical indexability; combined with the indicated tolerance class and execution, the insert integrates into standard toolholders designed for TNMG-style inserts. Documentation of cutting data and trial cuts will secure the most efficient cycle times and tool life for specific material batches.

For application support, parameter optimisation or to request availability of the TNMG160412-RM5 WSM20S from Walter Tools, contact Metav Werkzeuge for tailored machining advice and delivery options

Technical data

• Article number: TNMG160412-RM5-WSM20S-WALTER
• Product type: Drehwendeschneidplatte / indexable turning insert
• Brand: Walter Tools
• Grade: WSM20S
• Series: Tiger-tec Silver

Facts

• Insert shape: Triangle 60°
• Size: 16
• Corner radius: 1.2 mm
• Thickness: 04
• Free cutting angle: 0° (negative)
• Chipbreaker: RM5
• Execution: G
• Tolerance class: M

Special features

• Coated carbide grade
• Material applicability: S / M (superalloys / stainless steel)
• ISO designation: TNMG160412-RM5 WSM20S
• Base designation: TNMG160412-RM5
• Suitable for heavy-duty and heat-resistant alloy machining

FAQ

What materials is this insert suitable for? The TNMG160412-RM5 WSM20S by Walter Tools is specified for ISO groups M and S, meaning it is intended for stainless steel and heat-resistant superalloys including titanium and nickel-based alloys.

How does the RM5 chipbreaker affect machining? The RM5 chipbreaker on the insert promotes consistent chip segmentation and evacuation; in combination with the Tiger·tec Silver coating it stabilises the cutting process and reduces the risk of built-up edge when machining sticky or high-temperature materials.

What benefit does the 0° negative rake provide? A 0° negative rake increases edge strength and resistance to mechanical and thermal shock, which improves reliability in interrupted cuts and heavy turning operations common with the materials targeted by this insert.

How many cutting edges are available per insert? The triangular 60° geometry provides multiple usable cutting edges; the TNMG160412-RM5 base designation indicates a standard TNMG indexable format compatible with appropriate toolholders.

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

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