TNMG160408-FM5 WMP20G G Wendeplatten - Walter Tools

Take advantage of the WMP20G grade and FM5 chipbreaker for consistently stable chip formation and extended tool life when machining stainless steels; order directly via Metav Werkzeuge or consult our specialists for process parameters and holder recommendations

TNMG160408-FM5 WMP20G turning insert, triangular 60° by Walter Tools

A TNMG160408-FM5 WMP20G indexable turning insert designed for robust and repeatable machining of stainless steels in medium to heavy-duty turning applications

• Tiger·tec Gold coated carbide grade WMP20G
• FM5 chipbreaker for stable chip control
• Triangular 60° insert for three usable cutting edges
• 0.8 mm corner radius for reliable edge strength

Consistent performance for challenging stainless-steel cuts

The coated carbide combination of Tiger·tec Gold and the WMP20G grade delivers predictable cutting behaviour when working with stainless steels, a material group prone to work hardening and poor chip control. The FM5 chipbreaker actively shapes chips to reduce entanglement and heat concentration, which helps to avoid built-up edge and enhances process reliability. This translates into fewer unplanned tool changes and a steadier production flow, supporting measurable productivity gains in batch turning operations

Robust geometry that supports heavy cuts and interrupted turning

A triangular 60° form with a 0° (negative) relief angle increases edge strength and resistance to shock, making this insert suitable for more demanding machining tasks. The 0.8 mm corner radius balances edge robustness and surface finish: it sustains higher cutting forces without premature chipping while still enabling acceptable workpiece quality. The negative relief and compact geometry are particularly advantageous for operations requiring increased metal removal rates or where interrupted cuts occur

Improved surface quality and extended tool life through coating technology

The Tiger·tec Gold coating provides a hard, wear-resistant layer that reduces flank and crater wear at elevated temperatures typical of machining stainless steels. Coated carbide minimises adhesion and thermal softening, so the cutting edge remains stable over longer tool life cycles. The result is more consistent component tolerances and fewer secondary operations, delivering a tangible cost-in-use benefit for production environments prioritising repeatability and surface integrity

Practical integration and handling notes for workshop use

The insert is coded as a standard TNMG form and fits conventional toolholders for triangular inserts, offering three indexing positions for economical use. The FM5 chipbreaker performs best with tuned cutting parameters; pairing the insert with appropriate feeds and moderate cutting speeds reduces the risk of built-up edge. When mounting, ensure correct clamping and seat cleanliness to maintain repeatable geometry and take advantage of the insert’s design strengths in both roughing and semi-finishing duty

Contact Metav Werkzeuge for tailored advice on toolholder selection and optimal cutting data for Walter Tools Tiger·tec Gold inserts; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• SKU: TNMG160408-FM5-WMP20G-WALTER
• Label: Drehwendeschneidplatte TNMG160408-FM5 WMP20G Walter Tools
• Manufacturer: Walter Tools
• Product type: Drehwendeschneidplatte
• Series: Tiger·tec Gold
• Grade: WMP20G

Facts

• Insert size: 16
• Thickness code: 04
• Corner radius: 0.8 mm
• Relief angle: 0° (negative)

Special features

• Coating technology: Tiger·tec Gold
• Chipbreaker: FM5
• Shape: Triangular 60°
• Material group suitability: M (stainless steels)
• Substrate: coated carbide

FAQ

Is this insert suitable for machining stainless steels?
Yes. The WMP20G grade and Tiger·tec Gold coating are formulated for stainless steels, enabling stable chip formation and improved wear resistance when using the TNMG160408-FM5 insert in turning applications

How many cutting edges are available per insert?
A triangular 60° insert provides three usable cutting edges; the TNMG160408-FM5 design allows economical indexing to maximise tool life

What benefit does the FM5 chipbreaker provide?
The FM5 chipbreaker promotes consistent chip control and reduces the risk of built-up edge, improving surface quality and reducing downtime for the Walter Tools insert

Can the insert withstand interrupted cuts or heavier depths of cut?
Yes. The negative relief angle and 0.8 mm corner radius increase edge strength, making this insert appropriate for interrupted turning and more robust cutting conditions

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 registered trademarks are mentioned for product description only. There is no affiliation between our company and the mentioned brands. The offered item is original and factory-new