WNMG080408-MA/MS Carbide Turning Insert – Product Introduction

Introduction

With over three decades of experience in carbide tooling, LIZHOU Carbide is recognized for providing durable, precise, and cost-effective solutions to global machining industries. Among our extensive portfolio of turning inserts, the WNMG080408-MA/MS carbide inserts are especially popular for their balance of strength, efficiency, and versatility. Engineered to deliver consistent performance in medium to heavy steel turning, these inserts combine advanced substrate technology with optimized chipbreaker designs.

This guide explores their technical advantages, the meaning of their designation, detailed parameters, application scenarios, practical usage recommendations, and the innovative technologies behind them.

2. Why Carbide Inserts Are the Preferred Choice

Compared with traditional high-speed steel tools, carbide inserts provide unmatched benefits in modern machining:

Higher cutting speed tolerance – ideal for improving productivity.

Superior wear resistance – supports long tool life even under abrasive conditions.

Heat resistance – stable cutting performance at elevated temperatures.

Multiple cutting edges – reduces cost per part by maximizing insert utility.

Consistent surface quality – crucial for industries requiring dimensional precision.

The WNMG080408-MA/MS inserts exemplify these benefits, making them reliable for mass production and precision machining.

3. Understanding the Designation: WNMG080408-MA/MS

Each character of the insert code conveys important information:

W – Hexagonal (trigon) shape, offering six effective cutting edges for cost efficiency.

N – Relief angle of 0°, increasing edge strength and stability.

M – Tolerance class “Medium,” ensuring versatility and compatibility.

G – Insert has a hole for secure clamping and double-sided usability.

08 – Insert size: 8 mm inscribed circle (IC).

04 – Thickness of 4.76 mm.

08 – Nose radius of 0.8 mm.

MA – Chipbreaker geometry designed for medium machining and finishing.

MS – Chipbreaker geometry optimized for stable performance on stainless steel and steel alloys.

This designation helps machinists choose the right insert for different machining tasks with accuracy.

4. Key Specifications and Parameters

The WNMG080408-MA/MS inserts conform to international ISO standards. Common technical parameters include:

Shape: Hexagonal trigon (80° cutting angle).

Cutting edges: 6 per insert (double-sided).

Size (IC): 8 mm.

Thickness: 4.76 mm.

Hole diameter: 3.81 mm.

Nose radius: 0.8 mm (other options available upon request).

Grades available: CVD-coated, PVD-coated, and uncoated carbide substrates.

Coating options:

CVD (TiCN, Al₂O₃, TiN) for wear resistance and heavy-duty turning.

PVD (TiAlN, TiCN) for toughness in interrupted cuts and stainless steel.

These parameters allow operators to adapt the insert to various cutting environments.

5. Application Scenarios

The WNMG080408-MA/MS inserts are widely applied in industries that demand reliability and cost-effective machining:

Automotive manufacturing – brake components, engine housings, shafts.

Aerospace – structural steel parts and alloy fittings.

Heavy machinery – gears, bearings, and robust steel components.

Oil and gas – pipelines, valves, and drill parts.

General engineering – flanges, fasteners, and custom precision parts.

MA geometry is ideal for medium turning, providing balanced chip evacuation and surface finish.

MS geometry is suited for machining stainless steel and high-strength alloys, minimizing built-up edge and vibration.

6. Features, Benefits, and Precautions

Features and Benefits

Six cutting edges – reduces tooling cost and increases productivity.

Strong edge design – with 0° relief angle for heavy-duty machining.

Chipbreaker versatility – MA for general steel turning, MS for stainless steel.

Excellent wear resistance – thanks to advanced coatings and substrates.

Smooth surface finish – reduces secondary polishing needs.

Secure clamping – prevents insert movement during high-speed machining.

Precautions

Use rigid tool holders to minimize vibration.

Choose correct chipbreaker (MA or MS) depending on material type.

Apply cutting fluid when working with stainless steel to avoid built-up edge.

Monitor wear carefully and index inserts before excessive flank wear occurs.

Avoid over-tightening clamps to prevent insert cracking.

7. LIZHOU’s Innovation and Technology

As a carbide manufacturer, LIZHOU integrates advanced R&D into every insert:

Micro-grain carbide substrates – balance toughness and hardness.

High-performance coatings – CVD multi-layer and PVD nano-coatings for different conditions.

Chipbreaker simulation design – ensures effective chip evacuation and stable cutting.

Edge honing technology – reduces cutting resistance while maintaining precision.

Proprietary surface treatment – improves coating adhesion and durability.

Through continuous innovation, LIZHOU ensures that the WNMG080408-MA/MS inserts meet the evolving demands of global industries.

Frequently Asked Questions

Q1: What is the difference between WNMG080404-MS and MA models?
MS model: General purpose, AlTiN/TiSiN composite coating, suitable for continuous turning of steel and stainless steel, focusing on wear resistance.
MA model: High toughness type, TiAlN+ nano-lubricating layer, the chipping resistance of the turning tool frame is increased by 30%
Q2: Does the double-sided use of the blade require the tool bar to be flipped?
No! WNMG inserts can switch cutting edges by simply rotating 180°, also known as indexable carbide lathe inserts.
Q3: Is there a small batch trial package?
10 pieces of trial package (including 5 pieces of MS/MA each) are provided, and delivery is supported within 48 hours.
Q4: Can non-standard parameters be customized?
Yes! Including:
Special coating (such as diamond coating for graphite processing)
Customized edge treatment (such as passivation and strengthening)
Exclusive packaging (traceability system)

Packaging and warranty commitment

Standard packaging: 10 pieces/box, customization is supported.
Logistics solution: global air/sea transportation, providing DDP door-to-door service.

Conclusion

The WNMG080408-MA/MS carbide turning inserts are engineered to deliver durability, versatility, and cost efficiency in steel machining. With six cutting edges, optimized chipbreaker designs, and advanced coatings, they provide machinists with reliable solutions for both medium turning and stainless steel applications.

As a trusted carbide manufacturer, LIZHOU Carbide continues to supply high-performance cutting tools that drive productivity and precision worldwide. The WNMG080408-MA/MS series represents our commitment to quality and innovation in modern machining.