SCMT09T308-MM4 WMP20G MM4 Wendeplatten - Walter Tools

Efficient machining of stainless steel is achieved by combining the Tiger·tec Gold coating and a robust MM4 chipbreaker, delivering stable chip formation and extended tool life; this insert also offers a 0.8 mm corner radius and a 7° relief for reliable edge performance. Order the SCMT09T308-MM4 WMP20G directly via Metav Werkzeuge or ask our consultants for application support and process optimisation.

SCMT09T308-MM4 WMP20G — Drilling/boring and turning indexable insert, Tiger·tec Gold, Walter Tools

The SCMT09T308-MM4 WMP20G is a square 90° indexable insert engineered for turning and boring tasks in stainless steel, combining a coated carbide grade with a specific chipformer for consistent machining under medium to robust conditions.

• Tiger·tec Gold coated for long life
• MM4 chipbreaker for stable chip control
• 0.8 mm corner radius for robust edges
• 7° relief angle for demanding stainless steel

Stable chips and improved surface quality through optimised geometry

The Tiger·tec Gold technology and the WMP20G grade provide a coated carbide substrate designed to resist abrasive and adhesive wear typical of stainless steel applications. The MM4 chipbreaker promotes controlled chip segmentation even when machining materials prone to built-up edge, which reduces interruptions and rework. The combination of coating and chip control translates into a more consistent surface finish and less lateral tool deflection, allowing stable production runs and fewer insert changes per batch. This makes the insert particularly suitable where reproducible parts quality and predictable tool life are required.

Geometry that supports productivity and process security

The square 90° plate form with a 0.8 mm corner radius and 7° relief provides a balance between edge strength and cutting aggressiveness. The T3 thickness and size designation 09 ensure compatibility with standard turning and boring toolholders and permit multiple indexings before replacement. The geometry reduces edge chipping under interrupted cuts and supports safe engagement depths in common turning sequences. For workshops seeking to improve uptime, the insert’s design helps maintain cutting parameters longer, thereby reducing non-productive time for tool changes.

Application notes and setup recommendations for dependable results

Designed primarily for stainless steel (ISO group M), the insert excels in medium to robust cutting conditions and where secure chip evacuation is essential. The coated grade supports higher thermal and adhesive resistance, but stable fixturing and appropriate coolant/lubrication remain important to prevent workhardening and to control temperatures. For best outcomes, match the insert to a suitable toolholder rated for square 90° inserts and ensure a rigid machine setup. For process-specific cutting data or to confirm compatibility with a given holder system, Metav Werkzeuge offers technical guidance and can assist with optimisation.

For tailored advice on Walter Tools Tiger·tec Gold inserts such as the SCMT09T308-MM4 WMP20G, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for prompt application support and recommendations.

Technical data

• Article number: SCMT09T308-MM4-WMP20G-WALTER
• Name: Bohr-/Aufbohrwendeschneidplatte / Drehwendeschneidplatte SCMT09T308-MM4 WMP20G Walter Tools
• Manufacturer: Walter Tools
• Series: Tiger·tec Gold
• Grade: WMP20G

Facts

• Relief angle: 7°
• Corner radius: 0.8 mm
• Plate form: Square 90°
• Size: 09
• Thickness: T3
• Tolerance class: M

Special features

• Coating/technology: Tiger·tec Gold
• Chipbreaker: MM4
• Material: coated carbide
• Suitable for: stainless steel
• Application: turning and drilling/boring indexable insert

FAQ

Which materials are suitable for this insert?
The SCMT09T308-MM4 WMP20G is optimised for stainless steel (ISO group M) and is designed to manage the adhesion and heat-related challenges these materials present while maintaining stable chip formation.

How does the MM4 chipbreaker affect machining?
The MM4 chipbreaker on the SCMT09T308-MM4 WMP20G promotes controlled chip segmentation, which reduces the risk of entangling chips and improves surface quality during continuous and interrupted cuts.

What does the Tiger·tec Gold coating provide?
Tiger·tec Gold on the WMP20G grade enhances wear resistance and thermal stability, supporting longer tool life and more consistent cutting-edge performance when machining stainless steel.

Is this insert compatible with common square insert holders?
Yes, the square 90° form and T3 thickness of the SCMT09T308-MM4 WMP20G are compatible with standard holders for 09-size square turning and boring inserts; verify holder clamping dimensions before mounting.

What is the significance of the 0.8 mm corner radius?
A 0.8 mm corner radius balances edge strength and cutting forces: it provides robustness against chipping while still allowing acceptable surface finish and manageable cutting loads in stainless steel applications.

Manufacturer: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany; www.walter-tools.com

Geschützte Markenzeichen und Warenbezeichnungen liegen im Recht ihrer jeweiligen Eigentümer. Markennamen und geschützte Warenbezeichnungen werden ausschließlich zu Erklärungszwecken genannt. Es besteht keinerlei Verbindung zwischen unserem Unternehmen und den genannten Marken. Es handelt sich bei dem angebotenen Artikel um originale fabrikneue Waren des Herstellers.