Milling cutter types vary by shape, cutting edge design, 플루트 수, 코팅, and machining purpose. Each cutter type is designed for a different CNC milling operation, such as slotting, facing, 프로파일링, 3D 컨투어링, 황삭, 마무리 손질, or thread machining.
Choosing the right milling cutter type is important for tool life, 표면 마무리, chip removal, 및 가공 안정성. 예를 들어, an end mill cutter is commonly used for slotting and profiling, while a ball nose end mill is better for curved surfaces and mold cavities.
그러므로, this guide explains common types of milling cutters, their uses, and how to choose the right cutter type for different CNC machining applications.
What Are Milling Cutter Types?
Milling cutter types refer to different cutter designs used for different machining tasks. Some cutters remove material quickly. Some create flat surfaces. Others machine slots, threads, 곡면, or special profiles.
CNC 가공에서, the cutter type should match the operation, workpiece material, 기계 강성, 표면 요구 사항. A wrong cutter type may cause poor surface finish, 진동, chip clogging, or short tool life.
For a general introduction, you can also read our 밀링 커터 가이드.
Common Milling Cutter Types and Uses
The table below shows common milling cutter types and their main uses. It is useful for buyers, engineers, and machinists who want to compare different cutter options before choosing a tool.
| Milling Cutter Type | 주요 용도 | Typical Application |
| 엔드밀 커터 | 슬로팅, 프로파일링, 포켓 밀링 | General CNC milling |
| 볼 노즈 엔드밀 | 3D contouring and curved surfaces | 금형 공동, 죽는다, 3D parts |
| 불 노즈 엔드밀 | Semi-finishing and stronger corners | Steel and stainless steel parts |
| T-슬롯 커터 | T-slots and undercuts | Fixtures, machine tables, molds |
| 사이드 밀링 커터 | Side cutting and grooves | Slots, 어깨, side surfaces |
| 페이스 밀링 커터 | Flat surface machining | Large surface finishing |
| 스레드 밀링 커터 | Internal and external threads | CNC thread machining |
| 러핑엔드밀 | Fast material removal | Rough machining before finishing |
| Diamond-Coated End Mill | Abrasive material machining | 석묵, CFRP, 복합재 |
For a broader range of tool options, 보다 CNC 밀링 커터.
Main Types of Milling Cutters
엔드밀 커터
An end mill cutter is one of the most common milling cutter types. It can cut from the side and the end of the tool, so it is suitable for slotting, 프로파일링, 포켓 밀링, 컨투어링, and shoulder milling.
End mills come in different flute counts, 코팅, 길이, and carbide grades. 예를 들어, 2 flute end mills are often used for aluminum because they provide more chip space. 대조적으로, 4 flute end mills are often used for steel because they offer better rigidity and cutting stability.
For general CNC milling, 우리의 보기 엔드밀 커터.
볼 노즈 엔드밀
A ball nose end mill has a round cutting tip. This cutter type is used for 3D contouring, 곡면, 금형 구멍, 다이 가공, and precision finishing.
Compared with a flat end mill, a ball nose cutter can follow curved tool paths more smoothly. 하지만, it is not the best choice for sharp inside corners because the cutting tip is round.
For mold machining and curved surfaces, choose 볼 노즈 엔드밀.
불 노즈 엔드밀
A bull nose end mill is also called a corner radius end mill. It has a small radius on the cutting corner. This design improves corner strength and reduces chipping during machining.
Bull nose end mills are useful for semi-finishing, rough finishing, and machining materials such as steel and stainless steel. They are a good choice when a sharp square corner is not required, but stronger tool corners are needed.
For semi-finishing and stronger corners, 보다 불 노즈 엔드밀.
T-슬롯 커터
A T-slot cutter machines T-shaped slots and undercuts. These slots are common in machine tables, fixtures, molds, and clamping systems.
Usually, an end mill first opens a straight slot. Then, the T-slot cutter creates the wider undercut shape. This process helps reduce tool load and improves machining stability.
For T-slot and undercut machining, use a T-slot cutter.
사이드 밀링 커터
A side milling cutter cuts grooves, 슬롯, and side surfaces. It removes material from the side of the workpiece and works well for wider grooves or vertical side cutting.
This cutter type is often used in general machinery, fixture parts, mold components, and metalworking applications. 하지만, the setup must be stable because side cutting can create higher cutting forces.
For groove and side surface machining, 보다 side milling cutter.
페이스 밀링 커터
A face milling cutter is used to machine flat surfaces. It is often used for large surfaces, machine bases, mold plates, fixture plates, and metal blocks.
Compared with a small end mill, a face milling cutter can cover a wider cutting area. 그러므로, it is suitable when the workpiece needs a clean, flat, and consistent surface before the next machining step.
Face milling cutters are useful when the workpiece needs a clean, flat, and consistent surface before the next machining step.
스레드 밀링 커터
A thread milling cutter machines internal or external threads on CNC machines. It can be useful when the part needs accurate threads, different thread sizes, or better control than traditional tapping.
Thread milling also helps reduce the risk of tap breakage in some difficult materials. 하지만, it requires proper CNC programming and a stable machining setup.
Thread milling is useful for precision thread machining, but it requires proper CNC programming and a stable machining setup.
러핑엔드밀
A roughing end mill is designed for fast material removal. It usually has a special cutting edge design that breaks chips into smaller pieces and reduces cutting pressure.
This cutter type is often used before finishing. It removes extra material quickly and prepares the part for a smoother final surface. 하지만, roughing end mills are not usually used when the final surface finish is the main requirement.
Roughing end mills are suitable for fast stock removal before finishing, especially when machining efficiency is more important than final surface quality.
Diamond-Coated End Mill
Diamond-coated end mills are used for graphite, CFRP, 복합재, and other abrasive materials. These materials can wear normal cutting edges quickly, so coating selection is very important.
Diamond coating can improve wear resistance and help extend tool life in graphite machining. 하지만, the tool should still match the workpiece material, cutting parameters, 그리고 기계상태.
For graphite and abrasive materials, choose diamond-coated end mills.

How to Choose Milling Cutter Types by Operation
Different machining operations need different cutter types. 그러므로, you should choose the cutter based on the cutting task first.
| Machining Operation | Recommended Cutter Type | Reason |
|---|---|---|
| 슬로팅 | End mill cutter | Good for straight slots and pockets |
| T-slot machining | T-slot cutter | Creates T-shaped slots and undercuts |
| Facing | 페이스 밀링 커터 | Machines flat surfaces efficiently |
| 프로파일링 | End mill cutter | Cuts side walls and contours |
| 3D 컨투어링 | 볼 노즈 엔드밀 | Follows curved surfaces |
| 준마무리 | 불 노즈 엔드밀 | Provides stronger cutting corners |
| 황삭 | Roughing end mill | Removes material faster |
| Thread machining | Thread milling cutter | Cuts internal and external threads |
| Graphite machining | Diamond-coated end mill | Improves wear resistance |
Cutter Type for Slotting
End mill cutters are usually the most common choice for slotting. In aluminum machining, a 2 플루트 엔드밀 often works well because it provides more chip space.
When cutting steel slots, machinists may choose a 2 flute or 4 flute tool depending on slot depth, coolant, and machine rigidity.
Cutter Type for Steel Machining
Steel needs stronger cutting edges and better tool rigidity. 이러한 이유로, a 4 플루트 엔드밀 is often used for general steel milling, 프로파일링, 그리고 사이드 밀링.
게다가, coated carbide tools can improve heat resistance and tool life.
Cutter Type for Finishing
Finishing requires stable cutting and better surface quality. 그러므로, many machinists choose 4 flute or 6 플루트 엔드밀 tools when chip evacuation is not a major problem.
A higher flute count can improve surface finish, but the tool must match the machine rigidity and cutting parameters.
How to Choose Milling Cutter Types by Material
Workpiece material also affects cutter selection. A cutter type that works well for aluminum may not work well for stainless steel or graphite.
| 공작물 재료 | Suggested Cutter Type | Main Reason |
| 알류미늄 | 2 flute or 3 플루트 엔드밀 | 더 나은 칩 배출 |
| 강철 | 4 플루트 초경 엔드밀 | Better rigidity and stability |
| 스테인레스 스틸 | Coated carbide end mill | 더 나은 내열성 및 내마모성 |
| 석묵 | Diamond-coated end mill | Better wear resistance |
| 경화강 | High-performance coated carbide tool | 더욱 강력해진 절삭날 |
| Plastic | 1 flute or 2 flute tool | Reduces chip clogging |
When choosing a cutter type, do not only compare price. 대신에, check the workpiece material, 절단 깊이, tool length, 코팅, 플루트 수, 및 표면 마감 요구 사항.
For high-performance carbide tools, 보다 초경 엔드밀 커터.
Milling Cutter Types Selection Checklist
Before choosing a milling cutter type, check these points:
| 선택 포인트 | 확인해야 할 사항 |
| Machining Operation | 슬로팅, facing, 프로파일링, 황삭, 마무리 손질 |
| 공작물 재료 | 알류미늄, 강철, 스테인레스 스틸, 석묵, 플라스틱 |
| Cutter Shape | Flat, 공 코, bull nose, T-slot, side cutter |
| 도구 재료 | HSS, 카바이드, coated carbide, diamond-coated carbide |
| 플루트 카운트 | 2 플루트, 3 플루트, 4 플루트, 6 플루트 |
| 코팅 | TiAlN, 금, DLC, diamond coating |
| Tool Size | 지름, 플루트 길이, shank diameter, 전체 길이 |
| Machine Condition | Rigidity, 스핀들 속도, tool holder |
| 표면 요구 사항 | 황삭, 준결승, 마무리 손질 |
요컨대, the best milling cutter type depends on both the material and the machining operation. A suitable cutter can reduce tool wear, improve surface finish, and make CNC milling more stable.

FAQ About Milling Cutter Types
What are the main types of milling cutters?
Common milling cutter types include end mill cutters, 볼 노즈 엔드밀, bull nose end mills, T-slot cutters, side milling cutters, face milling cutters, thread milling cutters, 황삭 엔드밀, and diamond-coated end mills.
What is the most common milling cutter type?
The end mill cutter is one of the most common milling cutter types. It is widely used for slotting, 프로파일링, 포켓 밀링, shoulder milling, and general CNC machining.
일반 밀링 용도, 보다 엔드밀 커터.
Which milling cutter type is used for slots?
End mill cutters are commonly used for straight slots. For T-shaped slots, a T-slot cutter is used after the first straight slot is opened.
For special slot machining, 보다 T-slot cutter.
Which milling cutter type is used for curved surfaces?
Ball nose end mills are used for curved surfaces, 금형 구멍, 3D 컨투어링, and die machining. Their round tip can follow complex tool paths and create smooth curved surfaces.
For 3D surface machining, choose 볼 노즈 엔드밀.
Which milling cutter type is used for flat surfaces?
Face milling cutters are often used for large flat surfaces. End mills can also machine smaller flat areas when more flexible tool movement is needed.
How do I choose the right milling cutter type?
첫 번째, confirm the machining operation. Then, check the workpiece material, required surface finish, 절단 깊이, 기계 강성, 코팅, 플루트 수, and tool size. If the job involves abrasive materials such as graphite, diamond-coated tools may be a better choice.
결론
Milling cutter types include end mill cutters, 볼 노즈 엔드밀, bull nose end mills, T-slot cutters, side milling cutters, face milling cutters, thread milling cutters, 황삭 엔드밀, and diamond-coated end mills. Each cutter type has a different function, so the right choice depends on the machining operation, 재료, 기계 상태, 표면 요구 사항.
For general CNC milling, many factories start with an 엔드밀 커터 because it is suitable for slotting, 프로파일링, 그리고 포켓밀링.
A wider product range is available in our CNC 밀링 커터.
Graphite and abrasive materials usually need diamond-coated end mills for better wear resistance and longer tool life.
정밀 밀링 커터,모든 재료를 가공하는 CNC용 절삭 공구
