SNMG120412-MM5 WMP20G WMP20G Wendeplatten - Walter Tools

Take advantage of a hard-wearing, coated carbide grade and a purpose-designed chipbreaker to improve process stability during stainless-steel turning. The combination of the Tiger·tec Gold grade and the MM5 chipformer delivers consistent chip control and long edge life. Order via Metav Werkzeuge or request application support from our technical consultants.

SNMG120412-MM5 WMP20G square 90° indexable turning insert, Tiger·tec Gold – Walter Tools

The SNMG120412-MM5 WMP20G is a square, 90° indexable turning insert engineered for medium to robust stainless-steel turning operations, offering reinforced cutting edges and optimised chip control for industrial production environments

• Tiger·tec Gold coating for long tool life
• Optimised MM5 chipbreaker for stable chips
• Square 90° form with 1.2 mm corner radius
• Designed for stainless steel (ISO M)

Improved cutting performance for stainless steels

The combination of the Tiger·tec Gold coating and the WMP20G carbide grade provides improved wear resistance and thermal stability when machining stainless steels. The coated hardmetal substrate reduces flank wear and supports a reliable cutting edge under elevated temperatures, which helps maintain dimensional consistency and surface finish during longer cycles. This translates into fewer insert changes and a steadier production throughput on lathes and turning centres.

Reliable chip control and robust edge geometry

The MM5 chipbreaker is designed to produce short, manageable chips in the challenging conditions typical of ISO M materials. Paired with a square 90° insert form and a 1.2 mm corner radius, the geometry increases edge strength and resists build-up of edge deformation. The 0° (negative) relief promotes a negative-rake characteristic that favours stability and durability of the cutting edge, particularly in interrupted cuts or heavy cross-sections, while the chipformer reduces re-cutting and potential surface damage.

Practical compatibility and application benefits

Marked as SNMG120412-MM5 WMP20G, this insert matches standard indexable tooling holders for SNMG geometry and is intended for use where consistent performance on stainless steel is required. The plate thickness and tolerance class support repeatable mounting and secure clamping, aiding repeatable component quality. For production users this means predictable tool life, fewer setup interventions and ultimately improved process economy — especially valuable for batch machining and series production.

Contact Metav Werkzeuge for application recommendations, availability and technical support on Walter Tools inserts — phone +49 2822 7131930 or eMail info@metav-werkzeuge.com

Technical Data

• Article number / SKU: SNMG120412-MM5-WMP20G-WALTER
• Designation: SNMG120412-MM5 WMP20G
• Product type: Indexable turning insert (Drehwendeschneidplatte)
• Brand: Walter Tools

Core technical data

• Insert size: 12
• Thickness: 04
• Corner radius: 1,2
• Relief angle: 0° (negativ)

Design & features

• Series: Tiger-tec Gold
• Grade / sort: WMP20G
• Chipbreaker: MM5
• Form: Square 90°
• Material group: M (suitable for stainless steels)
• Tolerance class: M
• Coating: Coated carbide (Tiger·tec Gold)

FAQ

What materials is this insert intended for?
This turning insert is specified for machining stainless steels (ISO M); the WMP20G grade and Tiger·tec Gold coating support stable cutting in those materials.

How does the MM5 chipbreaker affect machining?
The MM5 chipbreaker on this SNMG insert produces short, controlled chips, improving swarf handling and reducing the risk of chip entanglement during turning.

Is this insert compatible with standard SNMG toolholders?
Yes, the SNMG120412-MM5 WMP20G follows SNMG geometry and is compatible with holders designed for SNMG indexable inserts.

What advantages does the 0° (negative) relief provide?
The 0° (negative) relief increases cutting-edge strength, enhancing performance in robust and interrupted-cut conditions while extending edge life.

Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany; support: Walter Tools

The Walter AG (brand: Walter Tools) is one of the world’s leading manufacturers of precision metalworking tools and is part of the Sandvik Group. Protected trademarks and product names are used solely for explanation. There is no affiliation between our company and the named brands; the offered article is original, factory-new merchandise of the manufacturer.