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WWM320 Milling Insert for Stainless Steel

WWM320 Bronze-Coated Insert for Stainless Steel and HRC35–HRC45 Hardened Materials

WWM320 is a bronze-coated milling insert built for stainless steel and high-hardness materials in the HRC35–HRC45 range. It tackles two common shop-floor headaches: chip sticking on stainless and hard skin on hardened parts.

  • Wear and chipping resistance for stable, repeatable cutting
  • Geometry and grade optimized to reduce chip sticking on stainless steel
  • Suited to hardened skin machining up to HRC45
  • Leaves a good surface finish for semi-finish and finish milling
WWM320 Milling Insert for Stainless Steel
#249
Highlights
Key Advantages
  • Bronze coating helps the insert hold up longer when cutting abrasive stainless steel and hardened material.
  • Optimized geometry and grade reduce chip sticking on stainless steel, so chips clear better and cutting stays consistent.
  • Works on hardened skin and case-hardened surfaces in the HRC35–HRC45 range, including interrupted cuts.
  • Chipping-resistant design cuts down on breakages, keeping your milling process stable and predictable.
  • Delivers a good surface finish for semi-finish and finish milling operations.
Use Cases
Applications
  • Milling stainless steel parts where chip sticking is a common problem.
  • Semi-finish and finish milling of hardened steels from HRC35 to HRC45.
  • Machining hardened skin and case-hardened surfaces on hardened components.
  • General milling of wear-resistant and difficult-to-cut alloys.
  • Production milling where stable cutting and surface quality are critical.
Specs
Technical Specifications
ModelWWM320
CoatingBronze coating
Primary ApplicationStainless steel milling
Hardness RangeHRC35–HRC45
Key FeaturesWear-resistant, chipping-resistant, anti-chip-sticking, stable cutting
Surface QualityExcellent surface machining quality
Details
Detailed Description

Title: WWM320 Milling Insert for Stainless Steel & Hardened Material
Model: WWM320, bronze coating
Application: Milling of stainless steel and HRC35–HRC45 high-hardness materials.
Features: Optimized for stainless steel conditions prone to chip sticking and hardened skin machining, wear-resistant, chipping-resistant, stable cutting, and excellent surface machining quality.

FAQ
FAQ
What materials can the WWM320 milling insert handle?
It's made for stainless steel and high-hardness materials in the HRC35–HRC45 range, including hardened skin and case-hardened surfaces.
How does the bronze coating help in real cutting?
The bronze coating improves wear resistance, which means the insert holds its edge longer when you're cutting abrasive stainless steel and hardened materials. That translates to fewer indexing stops and more consistent tool life.
Will it really reduce chip sticking on stainless steel?
Yes. The insert's geometry and grade are optimized for stainless steel conditions where chip sticking is a problem. You get smoother chip evacuation and more consistent cutting, which helps avoid sudden load spikes and poor surface finish.
Can it handle hardened skin machining?
Yes. The WWM320 is designed for hardened skin conditions within HRC35–HRC45. The chipping-resistant design keeps it stable during interrupted or skin cuts, so you're less likely to see breakages.
What do I need to check before ordering to make sure it fits my setup?
Please confirm your insert shape, edge geometry, and toolholder interface with our team. Share your workpiece material, hardness, and machining operation so we can verify the WWM320 matches your setup.
What's the typical lead time and how is quality controlled?
Lead time depends on order quantity and stock status. Contact us for current availability. Inserts go through standard quality control with dimensional and coating checks before shipment.
Stock
Check Stock & Get a Quote
Send us your workpiece material, hardness range, and required insert geometry. Our team will confirm compatibility, quote pricing, and advise on lead time for the WWM320 stainless steel milling insert.