Walter SNMG120404-NM4 Grade WSM20 Carbide Indexable Inserts

Description:

The Walter SNMG120404-NM4 Grade WSM20 Carbide Indexable Insert is used in industrial CNC turning systems for precision metal cutting, roughing, profiling, and material removal operations on stainless steel, heat-resistant alloys, and difficult-to-machine materials. Commonly installed in indexable turning toolholders, CNC lathes, production machining centers, and high-volume manufacturing equipment. Maintenance teams, machinists, and manufacturing engineers use this insert for tooling replacement, production turning, process optimization, and maintaining reliable cutting performance in demanding industrial environments.

Applications:

The Walter SNMG120404-NM4 WSM20 carbide insert is designed for industrial turning operations requiring strong wear resistance, stable cutting performance, and dependable chip control during continuous and interrupted cuts. It is frequently utilized in aerospace component production, automotive manufacturing, oil and gas equipment machining, power generation industries, heavy equipment fabrication, and CNC production environments where dimensional accuracy, long insert life, and reduced machine downtime are critical for maximizing productivity and machining efficiency. WSM20 grade inserts are commonly optimized for stainless steel and high-temperature alloy machining applications.

Technical Specifications:

• Brand: Walter
• Part Number: SNMG120404-NM4
• Grade: WSM20
• Product Type: Carbide Indexable Turning Insert
• Insert Style: SNMG
• Material: Carbide substrate
• Grade Classification: WSM20
• Chipbreaker Geometry: NM4
• Insert Shape: Square negative insert
• Inscribed Circle: 1/2 inch (12.7 mm)
• Insert Thickness: 3/16 inch (4.76 mm)
• Corner Radius: 1/64 inch (0.4 mm)
• Clearance Angle: 0°
• Cutting Direction: Neutral
• Number of Cutting Edges: Multiple indexable cutting edges
• Function: Turning, facing, profiling, and material removal
• Application Type: CNC and production turning operations
• Compatible Equipment: CNC lathes and turning centers
• Cutting Application: Stainless steel, heat-resistant alloys, and general metal machining
• Construction Type: Precision-ground coated carbide insert
• Industrial Use: Production machining and tooling replacement
• Performance Feature: High wear resistance and extended tool life

Common Replacements:

• Sandvik Coromant SNMG Turning Insert
• Kennametal SNMG Carbide Insert
• Seco SNMG Turning Insert