The Radius 4F end mill with a Corner Radius (often referred to as an "R" or "CR"). The 4 flutes allow for high feed rates and fine finishes in harder metals, while the radiused corners drastically reduce chipping and extend tool life compared to sharp, square corners.
Here are the key details and applications for these end mills:
1. Corner Radius (R): The rounded edge distributes cutting forces over a larger area, which prevents stress concentration and tool breakage, making them ideal for high-speed machining and mold making.
2. 4-Flute Design (4F): Best suited for peripheral milling, profiling, and finishing in materials like alloy steels, stainless steel, and cast iron.
3. Best Uses: Recommended for 3D contouring, pocketing, and finishing applications where sharp square ends wear out too quickly.






SPEC
|
Material |
Solid tungsten carbide |
|
Coating |
Uncoated or AlTiN or Nano coated....... |
|
Chemical Composition |
10% Co & 90% WC |
|
Grain Size |
1.2 μm |
|
Hardness (HRA) |
≥90 |
|
Magnetic Force |
23 (KA/M) |
|
T.R.S |
3200 (N/mm2) |
|
Magnetic Saturation |
10.3 (Ms) |
|
Purpose |
Kind of tool to milling |
|
Density |
14.05 (g/cm3) |
Tungsten Cemented Carbide Grade
Main

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Company Information
Kunshan Zhiyi Dingli Cemented Carbide Tool Co., Ltd. locates the famous domestic tool and machinery equipment production base - Suzhou. The factory is mainly working on the production and development of all kinds of carbide tools, like end mill, tap, drill bits, carbide pilots. In China, our goal is to become the central base of manufacture of die-casting rods, carbide boring bar, standard cutters, non standard cutters and hard-machining cutters, establishing a good and healthy company image among coterie.
At present, the company can. In general, our products can be used in manufacture of mould, electronics, car engine and accessories, petroleum machinery, machinofacture, etc. We have stable customers, such as the United States, Russia, Indonesia, South Korea, Japan, Australia and so on.




Testing Machine

Production Flow Chart

Packing & Delivery
Packing
1>Put the goods encased with plastic bag or plastic case in wooden box/carton/iron box, etc.
2>Other packing will be accept according to your needs.


FAQ
Q1: How long is your delivery period?
A1: It depends on specific conditions. However, it could be 10 to 15 days on average.
Q2: Do you offer samples?
A2: Yes, we do offer samples. However, buyers need to pay for the freight charge. In addition, whether samples are free or not depends on the quantity you buy.
Q3: How do you pack the products?
A3: In general, we use wood, plastic or carton boxes. We also put some soft materials inside to prevent possible damage on products.
Q4: How much advance payment do I need to make?
A4: If the products you buy are in stock, you need to make full payment; if the products are out of stock, you need to make about 50 percent of full payment and then we will start the production process. However, you still need to pay the rest of charges before we deliver the products.
Q5: What kinds of payment do you accept?
A5: In addition to the patterns of payment shown above, you can discuss with us about in which way you would like to pay.

About Color Aberration
Product pictures are all physical photography, due to photo-taking technology, light, display parameters, etc., there may be differences between the received physical objects and photos, please refer to the physical.
Cargo Receipt
All our products go through strict inspection and count before shipment. Please check the goods in person when they receive them.
Please refuse to sign and contact us if you find that the CTN number and model is wrong or the product is damaged in transit.
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