What Are Corner Radius End Mills?
Corner radius end mills are specialized CNC cutting tools featuring a rounded edge design that reduces tool breakage by 40% compared to sharp-corner end mills. Their unique geometry:
- Minimizes stress concentration in hard materials like titanium and stainless steel
- Improves surface finish (Ra ≤0.4μm achievable)
- Combines durability of square end mills with flexibility of ball nose tools
Ideal for semi-finishing to finishing operations in aerospace, automotive, and medical manufacturing.
Key Features
1. Enhanced Durability Design
- R0.2-R3.0mm corner radii distribute cutting forces evenly
- Reduces micro-chipping by 60% in hardened steels (HRC 50+)
2. Advanced Coating Options
- TiAlN coating: Best for high-temperature alloys (up to 1200°C)
- DLC coating: Ideal for aluminum (reduces built-up edge)
- Tool life extended 3-5X vs uncoated tools
3. Precision Engineering
- German 5-axis CNC grinding: ≤0.01mm radial runout
- Dynamic balancing: For vibration-free machining at 25,000 RPM
4. Optimized Cutting Geometry
- 2/3/4 flute designs for different material types
- 35°-45° helix angles: Balanced chip evacuation
5. Machine Compatibility
- Shank types: BT, HSK, CAT (DIN 69871 compliant)
- Works with: Haas, Mazak, DMG Mori CNC systems
Technical Specifications
| Parameter | Specification |
|---|
| Diameter Range | 1-25mm (±0.005mm tolerance) |
| Flute Length | 2D-5D (Standard), up to 10D (Custom) |
| Corner Radii | R0.2, R0.5, R1.0, R2.0, R3.0 |
| Core Material | YG10X Tungsten Carbide (94.5% WC) |
| Coatings | TiAlN, TiCN, DLC, AlCrN |
| Max RPM | 25,000 (Dry), 18,000 (Wet) |
Industry Applications
1. Aerospace Manufacturing
Machining titanium aircraft components with reduced tool deflection for tighter tolerances.
2. Automotive Production
High-speed milling of engine blocks (aluminum) and transmission cases (cast iron).
3. Medical Implants
Precision finishing of surgical-grade stainless steel and titanium implants.
4. Energy Sector
Reliable performance when machining Inconel turbine blades in power generation equipment.
5. Electronics
Thin-wall machining of 5G antenna housings with minimal distortion.
Why Choose Our Tools?
ISO 9001 Certified manufacturing
Every tool laser-marked with unique ID for traceability
72-hour sample delivery for urgent projects
Free application engineering support
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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