CNMG120404-FM5 WMP20S FM5 Wendeplatten - Walter Tools

Benefit from the combination of Tiger·tec Silver performance, the robust WMP20S grade and a precise 0.4 mm corner radius for dependable machining of stainless steel; order the CNMG120404-FM5 WMP20S through Metav Werkzeuge or consult our advisors for application support.

CNMG120404-FM5 WMP20S turning indexable insert — Tiger·tec Silver grade for stainless steel | Walter Tools

CNMG120404-FM5 WMP20S is an indexable turning insert engineered for reliable, repeatable performance when machining stainless steel under medium to robust cutting conditions

• Tiger·tec Silver coated carbide grade
• WMP20S optimised for stainless steel
• Rhombic 80° insert geometry
• FM5 chipbreaker for stable chips

Consistent performance on stainless steel

The CNMG120404-FM5 WMP20S combines a coated carbide substrate with the Tiger·tec Silver technology to address the specific challenges of machining stainless steel. The tailored WMP20S grade promotes controlled chip formation and a stable cutting edge where heat and stickiness commonly occur. For production environments that demand predictable tool life and fewer interruptions, this insert reduces the risk of build‑up edge and supports higher process stability, translating into fewer reworked parts and improved overall equipment effectiveness.

Geometry and chip control that support productivity

The rhombic 80° geometry together with the FM5 chipbreaker delivers consistent chip segmentation and evacuation, particularly important when turning ductile stainless alloys. The negative rake of 0° (negative) and the 0.4 mm corner radius balance strength at the cutting edge with the need for a defined contact zone, which helps maintain surface finish and dimensional stability. These design choices enable efficient material removal while lowering the likelihood of unexpected edge failure during intermittent or continuous cuts.

Designed for industrial repeatability and process security

As part of the Tiger·tec Silver series, this insert emphasises process security and reproducible results across batches. The WMP20S grade has been developed for the specific demands of stainless steel, offering a compromise between toughness and hot‑hardness that supports long runtimes and predictable change intervals. In practice, this means less unplanned downtime and more consistent part quality — advantages that directly affect manufacturing throughput and cost‑of‑ownership calculations.

Practical application notes and integration

The insert is suitable for use in standard CNMG toolholders and is intended for turning operations where secure chip control and robust edge life are priorities. For stainless steel, consider stable clamping, appropriate feed rates and reliable coolant or lubrication strategies to complement the insert’s performance. The FM5 chipbreaker is particularly effective when paired with moderate to higher feeds at controlled cutting speeds, helping to maintain short, manageable chips and reduce operator intervention.

Contact Metav Werkzeuge today for tailored application advice on the CNMG120404-FM5 WMP20S and to arrange procurement or technical queries via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: CNMG120404-FM5-WMP20S-WALTER
• Designation: CNMG120404-FM5 WMP20S
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver

Facts

• Insert size: 12 mm
• Thickness: 4 mm
• Corner radius: 0.4 mm
• Insert shape: Rhombic 80°
• Rake angle: 0° (negative)
• Tolerance class: M

Special features

• Grade: WMP20S (coated carbide)
• Chipbreaker: FM5
• Suited material group: stainless steel
• Execution: G
• Industrial focus: medium to robust cutting conditions

FAQ

Is this insert suitable for machining stainless steels?
The CNMG120404-FM5 WMP20S from Walter Tools is specifically designed for stainless steel and provides optimised chip control and edge stability for such materials.

What does the FM5 chipbreaker deliver in practice?
The FM5 chipbreaker on the CNMG120404-FM5 WMP20S promotes consistent chip segmentation, reducing long, entangling chips and aiding safe chip evacuation during turning of stainless steel.

Which toolholders accept this insert form?
The rhombic 80° CNMG geometry fits standard CNMG toolholders; compatibility with specific tool bodies should be confirmed for the intended clamping system before commissioning.

How does the 0.4 mm corner radius affect performance?
A 0.4 mm corner radius increases edge strength for interrupted or robust cuts while still allowing a good surface finish when combined with the appropriate cutting parameters for stainless steel.

What advantages does the Tiger·tec Silver series provide?
Tiger·tec Silver technology, implemented in the WMP20S grade, enhances heat and wear resistance for coated carbide applications, delivering improved process stability and longer tool life in stainless steel turning.

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

The Walter AG (brand presentation: Walter Tools) with headquarters in Tübingen is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Sandvik Group. Protected trademarks and trade names are the property of their respective owners. Brand names are mentioned exclusively for explanation; there is no connection between our company and these brands. The offered article is original, factory‑new merchandise of the manufacturer.