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Turning Inserts WWP115/125 · WEP115/WEP125N · WEU315/315N · WEK115/125

Turning inserts for steel, stainless steel and cast iron — one series covers the main grades

This turning insert series is built around one idea: give you a single source for the grades you use most. WWP115/125 handles steel and is positioned as a replacement for imported grades. WEP115/WEP125N also runs steel but matches domestic-grade expectations. For stainless steel, there is WEU315/315N, and for cast iron, WEK115/125.

The range also includes LM, TK and AM chipbreaker geometries, so you can match the chip control to the operation rather than compromise. These inserts are meant to drop into existing toolholders and replace imported inserts without changing your setup.

  • Steel: WWP115/125 (imported-grade replacement), WEP115/WEP125N (domestic-grade replacement)
  • Stainless steel: WEU315/315N
  • Cast iron: WEK115/125
  • Chipbreakers: LM, TK, AM and others
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Turning Inserts WWP115/125 · WEP115/WEP125N · WEU315/315N · WEK115/125
#267
Highlights
Key Advantages
  • One series covers steel, stainless steel and cast iron, so you can consolidate insert purchases and reduce supplier juggling.
  • WWP115/125 is positioned as a direct replacement for imported steel inserts — same toolholder compatibility, no reprogramming needed.
  • WEU315/315N is a dedicated stainless steel grade, aimed at avoiding the built-up edge and poor surface finish that general-purpose inserts can cause.
  • WEK115/125 is made for cast iron, where abrasion resistance matters more than sharpness — it holds up in interrupted cuts and scale.
  • LM, TK and AM chipbreakers give you options for finishing, medium turning and roughing without switching insert grades.
  • Designed as a stable, durable alternative to imported inserts, with consistent grade and geometry batch to batch.
Use Cases
Applications
  • Steel turning with WWP115/125 — replacing imported grades in general and CNC turning.
  • Steel turning with WEP115/WEP125N — where domestic-grade pricing and availability are preferred.
  • Stainless steel turning with WEU315/315N — including 304, 316 and similar austenitic grades.
  • Cast iron turning with WEK115/125 — gray and ductile iron, including interrupted cuts.
  • Mixed-material job shops using LM, TK and AM chipbreakers across steel, stainless and cast iron.
Specs
Technical Specifications
Product TypeCarbide turning inserts
Steel GradesWWP115/125 (imported-grade replacement); WEP115/WEP125N (domestic-grade replacement)
Stainless Steel GradeWEU315/315N
Cast Iron GradeWEK115/125
Chipbreaker GeometriesLM, TK, AM and other geometries
Working ConditionsMainstream steel, stainless steel and cast iron machining
CompatibilitySubstitute for imported inserts
Details
Detailed Description

Full series of turning inserts: WWP115/125 for steel (replacement for imported grades), WEP115/WEP125N for steel (replacement for domestic grades), WEU315/315N for stainless steel, WEK115/125 for cast iron; also includes LM, TK plate, AM and other chipbreaker geometries, covering mainstream working conditions of steel, stainless steel, and cast iron, and can substitute imported inserts. WWP115/125
Chinese: For steel, replacement for imported grades
English: For steel, replacement for imported grades
WEP115/WEP125N
Chinese: For steel, replacement for domestic grades
English: For steel, replacement for domestic grades
WEU315/315N
Chinese: Special grade for stainless steel
English: Special grade for stainless steel
WEK115/125
Chinese: Special grade for cast iron
English: Special grade for cast iron

FAQ
FAQ
Which grade do I pick for steel, stainless or cast iron?
For steel, go with WWP115/125 if you are replacing imported inserts, or WEP115/WEP125N if you are coming from domestic grades. Stainless steel takes WEU315/315N. Cast iron takes WEK115/125. If you are unsure, send us the workpiece material and cutting conditions and we will point you to the right one.
Can these really replace imported inserts?
Yes — that is what they are designed for. WWP115/125 is specifically positioned as an imported-grade replacement for steel. The geometry and grade are matched to the same toolholder interfaces, so you should not need to change anything in your setup. We recommend a trial batch first to confirm performance on your specific operation.
What chipbreakers are available and which one should I use?
LM, TK and AM are the main ones, plus other options. LM is typically used for finishing and light turning, TK for medium turning, and AM for rougher conditions. The right choice depends on your depth of cut, feed rate and whether the cut is continuous or interrupted.
How do I check compatibility with my toolholder?
Send us the insert shape, size, ISO code, your toolholder model and what you are machining. We will confirm the matching grade and chipbreaker before you order. This avoids the common mistake of ordering the right grade but the wrong geometry.
What is the lead time and how do you control quality?
Lead time depends on grade, quantity and stock. Please confirm with our sales team before ordering. Inserts are produced to consistent grade and geometry standards, and we inspect before shipment. If you need a specific batch consistency, let us know.
Can I order mixed grades or trial quantities?
Yes. We can quote mixed grade and chipbreaker combinations for trial or production orders. Just send the grades, geometries and quantities you need, and we will put together a quotation.
Stock
Check Stock & Get a Quote
Tell us the workpiece material, insert code and chipbreaker you need, and we will recommend the right grade and confirm availability, pricing and lead time.
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