CNMG120404-GM PC8110
SHITAEGER
NEK-CN01
Turning Insert
Automobile, machine tool, aviation, mould
10pcs/box
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The CNMG120404 turning insert represents the pinnacle of cutting tool innovation, designed to address the challenges of modern manufacturing with unparalleled precision and reliability. Built for heavy-duty operations, this insert boasts a robust negative rake geometry and a reinforced carbide structure, ensuring stability in high-feed, high-depth machining applications. The 12.7mm size and 4.76mm thickness provide optimal strength for removing substantial material volumes, while its advanced surface treatment technologies minimize friction and prolong operational lifespan. Whether deployed in CNC turning centers or manual lathes, the CNMG120404 consistently delivers smooth, vibration-free cuts, making it indispensable for industries requiring rigorous quality standards and reduced cycle times.
1. Thermal Barrier Coating: A nano-layered AlCrN (Aluminum Chromium Nitride) coating is applied to the insert, offering exceptional thermal insulation and reducing heat transfer to the substrate by 30%. This feature is critical for machining heat-sensitive materials and maintaining dimensional accuracy.
2. Precision Grinding Technology: Each cutting edge undergoes micro-grinding with diamond wheels, achieving a cutting edge radius of ≤ 5 μm. This process ensures razor-sharp edges for burr-free finishes and minimizes radial forces during machining.
3. Adaptive Chip Breaker: The insert’s variable-geometry chip breaker adapts to different cutting depths and feeds, promoting consistent chip formation in both light finishing (0.1–0.5mm) and heavy roughing (2–6mm) applications.
4. Eco-Efficiency: Reduced energy consumption is achieved through optimized cutting forces, while the insert’s long lifespan decreases waste generation, supporting environmentally conscious manufacturing practices.
5. Universal Applicability: The 80-degree diamond configuration allows for axial, radial, and tangential mounting, enabling complex contouring and threading operations without tool changes.
The CNMG120404-GM PC8110 turning insert stands as a pinnacle of cutting tool engineering, meticulously crafted to resolve the most demanding challenges in modern manufacturing. Built upon a robust cemented carbide foundation, this insert features a negative rake geometry that provides extraordinary structural integrity during high-feed and high-depth material removal. When engaging with tough alloys or hardened steels, operators will immediately notice the smooth, vibration-free cutting action that translates directly into superior surface finishes.
The tactile sharpness of the micro-ground edges, combined with a specialized thermal barrier coating, ensures that heat is deflected away from the substrate, preserving the tool's dimensional accuracy even under extreme thermal stress. By significantly reducing friction and radial forces, this turning insert allows manufacturing facilities to maintain relentless production schedules without the constant interruption of premature tool wear. It is the definitive choice for operations demanding uncompromising precision, exceptional edge retention, and a flawless machined finish on every single component.
The CNMG120404 is a versatile solution for high-performance machining across industries:
· Heavy Equipment Manufacturing: Machining excavator booms, mining crusher shafts, and cast iron rollers with exceptional surface integrity.
· Precision Tooling: Crafting injection molds and die-casting tools from hardened steels (50–60 HRC), where edge retention and finish quality are critical.
· Renewable Energy Sector: Producing wind turbine hubs, solar panel frames, and hydroelectric turbine blades from stainless steel and composite materials.
· Rail and Shipbuilding: Turning axle journals, propeller shafts, and marine engine components under high-vibration conditions with unwavering precision.
From high-speed dry machining to coolant-assisted operations, the CNMG120404 delivers reliable performance in stainless steels, superalloys, and non-ferrous metals, solidifying its role as a global industry benchmark for productivity and cost efficiency.


Elevate your machining capabilities with an insert engineered for maximum endurance and flawless execution. This cutting tool integrates state-of-the-art material science with advanced geometric design to solve common production bottlenecks, such as poor chip evacuation and rapid edge degradation, ensuring your operations remain highly productive.
Exceptional Thermal Resistance: The advanced coating technology acts as a formidable shield against extreme cutting temperatures, preventing tool deformation.
Razor-Sharp Edge Integrity: Micro-ground edges deliver a burr-free, mirror-like finish on the final workpiece, reducing the need for secondary processing.
Universal Mounting Capability: The 80-degree diamond shape allows for versatile positioning, minimizing the need for multiple tool setups.
Vibration Dampening: Engineered to absorb and dissipate radial forces, ensuring a quiet, stable, and highly accurate cutting environment.
Eco-Conscious Performance: Lower cutting forces translate to reduced machine energy consumption and fewer discarded inserts over time.
The foundation of any superior cutting tool lies in its metallurgical composition and surface treatment. This turning insert utilizes a high-strength cemented carbide substrate paired with a state-of-the-art nano-layered AlCrN (Aluminum Chromium Nitride) thermal barrier coating. This synergistic combination drastically minimizes thermal deformation during aggressive machining cycles, ensuring consistent performance even in the most demanding environments.
Reduces heat transfer to the tool substrate by up to 30%, safeguarding structural integrity during prolonged use.
Significantly extends operational lifespan when cutting heat-sensitive superalloys and high-hardness steels.
Provides a frictionless surface that actively prevents built-up edge (BUE) and unwanted material adhesion.
Maintains strict dimensional accuracy even in high-temperature cutting environments, ensuring every part meets specification.
Precision machining requires a tool geometry that can effortlessly shear through tough materials while maintaining absolute stability. The 80-degree diamond structure, combined with a robust negative rake angle, anchors the insert securely. This intelligent geometric design provides the essential rigidity needed for demanding material removal rates without sacrificing surface quality.
Diamond-wheel micro-grinding achieves a cutting edge radius of ≤ 5 μm for unparalleled tactile sharpness.
Effectively neutralizes radial cutting forces, mitigating chatter and protecting machine spindle bearings from excessive wear.
Guarantees a pristine, burr-free surface finish that often eliminates the need for costly and time-consuming secondary polishing.
Enhances overall tool holder stability, ensuring consistent tolerances are held across large production batches.
Unpredictable chip formation can lead to catastrophic tool failure, surface scratching, and costly machine downtime. To combat this, the insert is engineered with a highly responsive GM (Adaptive variable-geometry) chip breaker. This dynamic design seamlessly transitions between different machining parameters, ensuring continuous, safe, and predictable chip evacuation.
Flawlessly handles light finishing depths from 0.1mm to 0.5mm by generating tight, manageable chip curls.
Aggressively breaks chips during heavy roughing depths of 2mm to 6mm, preventing dangerous and disruptive chip entanglement.
Protects the newly machined surface from scoring and scratching caused by unevacuated swarf.
Promotes a safer working environment and enables uninterrupted, fully automated machining cycles.
Understanding the exact technical specifications of your cutting tools is crucial for optimizing machine parameters and achieving the desired surface integrity. Below is the comprehensive technical data for our premium turning insert, detailing its physical dimensions, material composition, and application capabilities to help you make an informed procurement decision.
| Parameter | Specification |
|---|---|
| Model | CNMG120404-GM PC8110 |
| Brand | SHITAEGER (NEK) |
| Product Type | Turning Insert |
| Material | Cemented Carbide |
| Coating | Nano-layered AlCrN (Aluminum Chromium Nitride) Thermal Barrier Coating |
| Insert Shape | 80-degree Diamond |
| Size/Length | 12.7mm |
| Thickness | 4.76mm |
| Cutting Edge Radius | ≤ 5 μm |
| Chip Breaker | GM (Adaptive variable-geometry) |
| Machining Depth | 0.1–0.5mm (light finishing) to 2–6mm (heavy roughing) |
| Applicable Materials | Stainless steels, superalloys, non-ferrous metals, hardened steels (50–60 HRC), cast iron |
| Applications | Automobile, machine tool, aviation, mould, heavy equipment, renewable energy, shipbuilding |
| Minimum Order Quantity (MOQ) | 10 pcs |
| Packaging | 10 pcs/box |
| Sales Model | Factory-direct sales |
Phone: +86-18868651999
Email: eden0906@nekkk.com
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