PCD Square End Mills
Engineered for precision and durability, our custom PCD square end mills deliver exceptional performance in milling non-ferrous metals and abrasive non-metals. Featuring rigidly brazed polycrystalline diamond edges, these tools ensure flawless 90-degree profiling, slotting, and edge milling.
Ideal for high-efficiency CNC operations including:
90° Shoulder Milling & Slotting: Perfect for precision aluminum and copper components.
High-Speed Pocketing: Efficient material removal for aerospace and automotive parts.
Edge Profiling & Trimming: Clean, splinter-free edges on CFRP and GFRP composites.
Direct Plunge Milling: Supported by our optional center-cutting designs.


- Extended Tool Life
- Reduced Cycle Time
- Consistent Precision
- Mirror Surface Finish
Core Advantages of Sundi PCD Square End Mills
Extended Tool Life
Outlasts conventional solid carbide tools by up to 50 times in highly abrasive materials, drastically reducing tool change downtime and increasing overall productivity.
Superior Surface Finish
Precision-ground PCD edges effectively eliminate built-up edge (BUE), leaving a flawless, mirror-like finish on aluminum, copper, and brass components.
Variable Pitch & Center-Cutting Design
Optional unequal flute designs are available to significantly suppress chatter. Paired with a single over-center flute, these end mills allow for direct plunge milling and highly efficient pocketing operations.
High-Rigidity Body
Premium tungsten carbide shanks provide maximum stability, minimizing vibration and deflection during high-speed CNC milling.
Technical Specifications & Customization Capabilities
Below are our standard size ranges. Click here to download the full [Sundi PCD Milling Cutter Catalog], or [Contact Us] for special specifications and custom tooling solutions.
Recommended Machining Parameters
| Work Material | Grade | Cutting Speed(m/min) | Feed(mm/rev) | Depth of Cut(mm) |
|---|---|---|---|---|
| Al alloy(4-9%Si) | PCD010 | 800-2500 | 0.1-0.3 | 0.05-0.3 |
| Al alloy(9-14%Si) | PCD 010 PCD025 | 600-1300 | 0.1-0.3 | 0.05-0.3 |
| Al alloy(14-18%Si) | PCD 010 PCD025 | 300-600 | 0.1-0.3 | 0.05-0.3 |
| Tungsten Carbide | PCD025 PCD302 | 10-30 | 0.05-0.2 | 0.02-0.5 |
| Woods | PCD010 | 1000-5000 | 0.1-0.5 | 0.2-5.0 |
| Cu alloy | PCD010 | 600-1000 | 0.05-0.2 | 0.05-3.0 |
| Plastic ,FPR | PCD010 PCD 025 | 600-1000 | 0.05-0.25 | 0.05-3.0 |
| Graphite | PCD025 PCD302 | 600-1000 | 0.05-0.25 | 0.05-3.0 |
| Material | Cutting Speed VC(m/min) | Feed Rate (fz/mm/U) | Coolant | |||
|---|---|---|---|---|---|---|
| ∅ 4~6 | ∅ 7~11 | ∅ 12~20 | ||||
| Al-Alloys Si < 1% | 150 - 6000 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Emulsion,MQL | |
| Al-Alloys Si < 12% | 150 - 4000 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Emulsion,MQL | |
| Al-Alloys Si > 12% | 150 - 2000 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Emulsion,MQL | |
| Magnesium Alloys | 150 - 6000 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Emulsion,MQL | |
| Copper Alloys | 150 - 5000 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Emulsion,MQL | |
| Brass Alloys | 150 - 4000 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Emulsion,MQL | |
| Ti-Alloys | 50 - 400 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Emulsion,MQL | |
| Graphite | 150 - 3000 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Emulsion,MQL | |
| GFRP glass fibre composites | 150 - 3000 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Dry, Air pressure | |
| CFRP carbon fibe composites | 150 - 4000 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Dry, Air pressure | |
| PTFE | 150 - 2000 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Dry, Air pressure | |
| Acrylic | 150 - 1800 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Emulsion,MQL | |
| Thermoplastics,Duroplastics | 150 - 1800 | 0.02 - 0.15 | 0.02 - 0.20 | 0.04 - 0.3 | Emulsion,MQL | |
Why Choosing us
Customization
We offer customized PCD milling cutters to match specific customer needs, including size, number of flutes.
Technical expertise
Our team has extensive technical expertise in cutting tools and machining processes, ensuring that our customers receive expert guidance and support.
Competitive pricing
We offer competitive pricing for our high-quality PCD milling cutter, helping to reduce tooling costs for our customers.
Exceptional customer service
We prioritize exceptional customer service and are dedicated to providing our customers with timely, accurate, and friendly support throughout the ordering process and beyond.