CCMT09T308-MM4 WMP20G MM4 Wendeplatten - Walter Tools

The Tiger·tec Gold grade and WMP20G coating ensure stable chip formation and extended edge life in stainless steel machining; combined with the 0.8 mm corner radius and MM4 chipbreaker, this insert gives consistent surface quality and reliable cycle times. Order the CCMT09T308-MM4 WMP20G directly via Metav Werkzeuge or ask our consultants if needed.

CCMT09T308-MM4 WMP20G indexable insert for stainless steel machining — Walter Tools

The CCMT09T308-MM4 WMP20G is an indexable insert engineered for turning and boring tasks on stainless steel, offering robust performance under medium to heavy cutting conditions.

• Tiger·tec Gold coated carbide
• Optimised for stainless steel machining
• 7° clearance for stable cutting
• 0.8 mm corner radius for edge strength

Greater productivity through material-adapted grade and coating

The WMP20G grade, part of the Tiger·tec Gold series, is a coated carbide specifically formulated for machining stainless steel, a group of alloys prone to work hardening and poor chip control. Thanks to the coating’s thermal resilience and the substrate’s toughness, the insert supports stable chip formation, reducing the risk of built-up edge and improving process security. This translates into more predictable tool life and fewer interruptions on the shop floor, which benefits cycle times and overall throughput.

Geometry and edge design that improve process reliability

Built in a Rhombus 80° shape with 7° clearance, the insert provides a secure seating and a geometry that helps control cutting forces during interrupted or continuous cuts. The 0.8 mm radius increases edge strength for tougher engagement and contributes to a consistently good surface finish when roughing into finish passes. The MM4 chipbreaker has been designed to manage stainless steel chips effectively, lowering the likelihood of entangling or ropey chips and supporting steady heat dissipation, which helps maintain dimensional accuracy over longer runs.

Practical benefits for workshop efficiency and tool management

The insert’s dimensions and chip control features simplify process parameter setting and make tool life more predictable, supporting lean production practices. Compatibility with common toolholders for CCMT-style inserts means fast indexation and minimal setup time, while the robust grade reduces the frequency of insert changes. Combined, these aspects promote lower machine downtime and better overall equipment effectiveness. Application advice is available from Metav Werkzeuge to match holder choice and cutting data to the intended stainless steel grade and operation.

For tailored application support or availability of the Walter Tools CCMT09T308-MM4 WMP20G insert, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for fast, expert guidance and supply

Technical Data

• Article number: CCMT09T308-MM4-WMP20G-WALTER
• Designation: CCMT09T308-MM4 WMP20G
• Product type: Drilling/boring and turning indexable insert
• Manufacturer: Walter Tools
• Series: Tiger·tec Gold

Facts

• Clearance angle: 7°
• Corner radius: 0.8 mm
• Insert size: 09
• Insert thickness: T3
• Tolerance class: M

Special features

• Chipbreaker: MM4
• Geometry: Rhombus 80°
• Grade: WMP20G (coated carbide)
• Material group: M (for stainless steel)
• Execution: T

FAQ

Is this insert suitable for machining stainless steel?
Yes. The CCMT09T308-MM4 WMP20G insert from Walter Tools is formulated for stainless steel and the Tiger·tec Gold coating helps control chips and heat when cutting these alloys.

What advantages does the MM4 chipbreaker provide?
The MM4 chipbreaker on this insert improves chip control during stainless steel turning, promoting consistent chip shapes and reducing the risk of built-up edge and chip entanglement for safer, more stable machining.

Can the insert deliver a good surface finish on final passes?
Yes. The combination of the 0.8 mm corner radius and the Tiger·tec Gold grade supports improved edge strength and stable cutting, which assists in achieving a reliable surface finish in finish and semi-finish operations.

Is this insert compatible with standard CCMT toolholders?
The CCMT09T308-MM4 WMP20G follows the CCMT indexable insert geometry and is compatible with holders designed for that format; correct clamping and seat condition remain important for best results.

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

Trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned for explanatory purposes only. There is no affiliation between our company and the mentioned brands. The offered item is an original, factory-new product from the manufacturer.