A Diamond End Mill is an advanced CNC cutting tool featuring diamond coatings (CVD/PCD) or polycrystalline diamond (PCD) tips. Engineered for precision machining of non-ferrous metals (aluminum, copper), composites (carbon fiber, graphite), and ultra-hard materials (HRC>45), these tools excel in high-speed, high-efficiency applications where surface finish and tool life are critical.
Key Advantages of Diamond End Mills
1 Unmatched Wear Resistance
- CVD/PCD Coatings (HV8000+): 10x longer life vs. carbide, reducing downtime and tool changes.
- PCD-Tipped Design: Ideal for abrasive materials like graphite and CFRP composites.
2 Ultra-High-Speed Performance
- Supports spindle speeds over 18,000 RPM and cutting speeds exceeding 2,000 m/min.
- Shortens cycle times by 40%+ for aluminum, magnesium, and soft metals.
3 Mirror-Quality Surface Finishes
- Achieves Ra≤0.2μm finishes, eliminating secondary polishing.
- Non-stick surface minimizes built-up edge (BUE) in aluminum alloys.
4 Material-Specific Optimization
- High-Silicon Aluminum: 4-flute nano-diamond coating resists adhesion.
- Hardened Steels (HRC50-65): PCD-tipped tools withstand high cutting forces.
5 Precision Engineering
- Radial Runout ≤0.003mm: Ensures ±0.01mm tolerance for micro-machining.
- Variable Helix Angles: Reduces vibration in 3D profiling operations.
6Cost Efficiency
- Single diamond end mill replaces 3-5 carbide tools, cutting costs by up to 30%.
Technical Specifications
| Parameter | Specifications |
|---|
| Diameter Range | 0.1mm–20mm (custom sizes available) |
| Helix Angles | 30°/35°/45° (selectable) |
| Flute Options | 2-flute (roughing) / 4-flute (finishing) |
| Coatings | CVD Diamond / PCD (Polycrystalline Diamond) |
| Substrate | Ultra-fine carbide (YG10X grade) |
| Shank Types | DIN6535HA, straight, or tapered |
| Hardness | HRC45–70 (optimal <HRC65) |
| Speed Range | 200–1,000 m/min (material-dependent) |
| Flute Lengths | 3xD / 5xD / 8xD |
| Machine Fit | CNC machining centers, HSC machines |
Industry Applications
Aerospace: Precision machining of aircraft aluminum frames, titanium components, and CFRP parts.
Automotive: Ultra-precision milling of engine blocks, transmission housings, and graphite EDM electrodes.
Medical: Micro-machining of cobalt-chrome implants, PEEK spinal devices, and surgical instruments.
Semiconductor: Wafer dicing and sapphire glass micro-milling for 5G components.
Mold Making: Finishing of hardened steel molds (HRC50+) and graphite electrodes.
Selection Guide
1 Material-Specific Recommendations
- Aluminum/Copper: 2-flute CVD-coated mill + MQL lubrication.
- CFRP/FRP: 3-flute PCD mill with wave-edge geometry (prevents delamination).
- Graphite: 4-flute nano-diamond coating + forced oil-mist cooling.
2 Operation-Specific Recommendations
- Slotting: ≥4xD flute length, ≤0.005mm perpendicularity.
- Profiling: Variable helix angles to suppress harmonic vibration.
- Roughing: Large-diameter tools at low RPM (maximizes MRR).
3Cooling Strategy Matching
- Flammable Materials (Magnesium): Mandatory oil-mist cooling (MQL).
- General Use: Dry/wet/HSM-compatible options available.
Contact us now to optimize your CNC machining processes!
Our company specializes in manufacturing and customizing a wide array of cutting tools, dedicated to boosting clients' production efficiency and slashing manufacturing costs. We offer comprehensive tool solutions tailored for various cutting materials, encompassing carbon steel (approx. HB225 hardness), alloy steel (HB225~325 hardness), pre-hardened steel (up to HRC45 hardness), quenched steel (HRC40~61 hardness), and cast iron. These solutions cater to diverse cutting needs, including straight cuts, curved cuts, L-shaped cuts, groove cuts, internal arc cuts, external arc cuts, T-shaped cuts, drilling, and threading.
Our carbide cutting tools excel in processing the aforementioned steel types, delivering exceptional performance with a precision tolerance of just ±0.02mm. This ensures that our customers can effortlessly achieve professional-grade cutting quality, making us your ideal partner for milling tool solutions.
We can provide customized OEM production services. If our standard carbide milling cutters do not meet your requirements, you can customize the diameter within 0.2mm-25mm, the total length from 50mm to 200mm, and choose flutes of 4F, 5F, 6F, or 8F. You can also add your own logo. Please feel free to contact us for any needs.
| Specification | Shank
Diamter(D) | Flute
Length(Lc) | Full
Length (L) | Diamter
(D) | Flutes
(F) |
| 1/2"1"3"1/2"4F | 1/2" | 1" | 3" | 1/2" | 4F |
| 1/4"3/4"2-1/2"1/4"4F | 1/4" | 1/4" | 2-1/2" | 1/4" | 4F |
| 1/8"3/8"1-1/2"1/8"2F | 1/8" | 3/8" | 1-1/2" | 1/8" | 2F |
| 1/16"3/16"1-1/2"1/8"2F | 1/16" | 3/16" | 1-1/2" | 1/8" | 2F |
| 3/8"1"2-1/2"3/8"4F | 3/8" | 1" | 2-1/2" | 3/8" | 4F |
| 3/16"5/8"2"3/16"2F | 3/16" | 3/16" | 3/16" | 3/16" | 2F |
| 3/32"9/32"1-1/2"1/8"2F | 3/32" | 9/32" | 9/32" | 1/8" | 2F |
| 5/8"1-1/4"3-1/2"5/8"4F | 5/8" | 1-1/4" | 3-1/2" | 5/8" | 4F |
| 5/16"13/16"2-1/2"5/16"4F | 5/16" | 13/16" | 2-1/2" | 5/16" | 4F |
| 5/64"3/16"1-1/2"1/8"2F | 5/64" | 3/16" | 1-1/2" | 1/8" | 2F |
| 7/64"3/8"1-1/2"1/8"2F | 7/64" | 3/8" | 1-1/2" | 1/8" | 2F |
Q1: Are you a trading company or a manufacturer?
A: We are a manufacturer, specializing in this field of cutting tools for over 15 years.
Q2: What kinds of products do you provide?
A: We make carbide end mills, drills for drilling, reamers, milling cutters, forming drills, turning tools, thread mills, inserts, and we also cover various non-standard cutting tools.
Q3: Do you provide OEM or ODM services?
A: Yes, indeed. We offer both OEM and ODM services to cater to our clients' specific needs.
Q4: Do you have free samples or discounts?
A: Free samples can be provided if clients agree to pay the shipping cost. For the first order, new clients receive a USD50 coupon for orders over USD500, and enjoy a 5% discount for orders exceeding USD5000.
Q5: How do you ensure cutting tool quality?
A:We guarantee materials & workmanship, use top-quality carbide, and conduct rigorous ISO-compliant inspections from raw material to final product, with 100% key dimension checks before shipping.
Q6: Can I specify my own freight forwarder?
Of course, we can deliver the goods to the shipping agent designated by the customer.
Just 4 steps to process your order:
1.Drawing:You can send existing regular product images or 3D drawings of the product to our sales manager.
2.Quote:Based on the product specifications, requirements, and processing technology, we will provide a quotation. Please confirm the final requirements with our sales manager.
3.Produce:After confirming the contract and delivery schedule without any issues, we will arrange production upon receipt of payment to ensure timely delivery.
4.Delivery:Once the goods have passed quality inspection, they will be dispatched in accordance with the agreed upon timeline and logistics arrangements specified in the contract
Payment:
For the principles of transaction security and long-term cooperation, we generally adopt bank transfers and Western Union as payment methods, or we negotiate further based on the specific order.
Delivery:
Considering the product's weight, volume, transportation timeline, and freight costs, we provide multiple shipping solutions to fulfill your transportation requirements.
Express shipping:
EMS and DHL international express are commonly used, and deliveries typically arrive within 3 to 10 days,If your place is remote , need to pay more for remote place , or change to ship by EMS
Air Freight:
Air freight is safe and fast, suitable for urgent shipments and large items exceeding 100kg. It generally takes 3-10 business days, with varying transit times for different countries.
Sea Freight:
Sea Freight is suitable for large orders due to its low cost, but with slower delivery times, typically ranging from 30 to 50 days
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