The HS(200) Long Neck 2 Flute Ball Nose End Mill combines 0.2 μm ultra-fine grain carbide with an AlTiCrSiN PVD coating. Its extended reach is suited to deep cavities and recessed features in hardened steel up to 65 HRC, with strong performance in high-speed, dry, and precision finishing applications.
The HS(200) Long Neck 2 Flute Ball Nose End Mill is designed for machining deep and recessed features where additional tool reach is required.
Its long neck configuration provides greater clearance between the cutting edge and the tool holder, making it suitable for deep cavities, narrow areas, and complex mold geometries.
The cutting tool uses a 0.2 μm ultra-fine grain carbide substrate combined with an AlTiCrSiN multi-element PVD coating.
This combination supports high-speed machining of hardened and difficult-to-machine materials while maintaining the cutting stability required for demanding finishing operations.
Extended Reach for Deep Cavity Machining
Deep mold cavities can create clearance problems when a standard ball nose end mill cannot reach the required surface.
The long neck design gives the HS(200) additional working reach, making it suitable for recessed areas, deep pockets, narrow sections, and complex 3D mold surfaces.
The required overhang should still be matched to the tool diameter, reach, machine rigidity, and cutting conditions to minimize deflection.
Key Features & Benefits
0.2 μm Ultra-Fine Grain Carbide
The HS(200) uses 0.2 μm ultra-fine grain carbide to provide a stable cutting edge for precision milling.
The fine-grain substrate supports edge stability and wear resistance during high-speed machining.
AlTiCrSiN PVD Coating
The AlTiCrSiN multi-element PVD coating provides high coating hardness and strong resistance to elevated cutting temperatures.
Its high-temperature performance above approximately 1100°C makes it suitable for demanding high-speed, dry, and semi-dry machining.
Designed for Hardened Steel up to 65 HRC
The HS(200) is suitable for machining hardened steel and mold steel up to 65 HRC.
This makes it a strong option for hard milling applications where thermal load and edge wear are major concerns.
Long Neck Ball Nose Geometry
The extended neck improves tool access to deep or recessed workpiece features.
The 2-flute ball nose profile also supports 3D contouring, curved-surface machining, and precision finishing.
Suitable for High-Speed and Dry Cutting
The HS(200) is designed for high-speed, dry, and semi-dry machining.
It can also be used with coolant when the machining process requires coolant-assisted cutting.
Suitable for Surface-Focused Finishing
The ball nose profile is well suited to finishing complex surfaces where surface quality is important.
The HS(200) is therefore suitable for applications that combine hard-material machining with demanding surface finish requirements.
Machining Problems the HS(200) Helps Solve
Deep Features Are Difficult to Reach
A standard tool may interfere with the workpiece or holder when machining deep recessed areas.
The long neck configuration provides additional clearance for difficult-to-reach features.
High Tool Loads in Hardened Steel
Hardened steel can place significant mechanical and thermal stress on the cutting edge.
The fine-grain carbide substrate and AlTiCrSiN coating are designed for machining materials up to 65 HRC.
Thermal Load During Dry Machining
Dry cutting can increase cutting temperatures and thermal stress.
The AlTiCrSiN coating provides high-temperature performance above approximately 1100°C for demanding machining conditions.
Surface Finish in Complex Geometry
Complex mold surfaces often require stable finishing performance rather than simple material removal.
The ball nose profile supports controlled contouring and finishing of curved and 3D surfaces.
Recommended Materials
The HS(200) is suitable for:
Tool selection should consider material hardness, required reach, tool diameter, machine rigidity, spindle capability, and cutting parameters.
Typical Applications
The HS(200) Long Neck Ball Nose End Mill is suitable for:
It is particularly useful where deep access and high-hardness machining capability are required in the same application.
Technical Specifications
| Specification | Details |
| Product Series | HS(200) |
| Tool Type | Long Neck Ball Nose End Mill |
| Number of Flutes | 2 |
| Substrate | Ultra-Fine Grain Carbide |
| Carbide Grain Size | 0.2 μm |
| Coating | AlTiCrSiN Multi-Element PVD Coating |
| High-Temperature Performance | Above approx. 1100°C |
| Hardened Steel Hardness | Up to 65 HRC |
| Cutting Methods | High-Speed, Dry, Semi-Dry, Coolant-Assisted |
| Suitable Materials | Hardened Steel, Mold Steel, Stainless Steel, Titanium Alloys, Nickel-Based Superalloys |
Why Choose the HS(200) Long Neck?
The HS(200) Long Neck combines extended tool reach with high-hardness machining capability.
It is designed for applications where deep or recessed features must be machined without giving up the wear resistance and thermal performance required for hardened materials.
Its ball nose geometry also supports precision finishing on complex 3D surfaces.
Custom Long Neck Ball Nose End Mills
Machining deep cavities and complex mold features may require a specific reach, diameter, or tool geometry.
JimmyTool supports custom carbide ball nose end mills based on drawings, samples, and machining requirements.
Custom solutions can be developed according to tool dimensions, geometry, coating, carbide grade, and application conditions.
For a custom inquiry, provide the required tool diameter, reach, workpiece material, hardness, machining conditions, quantity, and drawing or sample when available.
FAQ
What is a long neck ball nose end mill used for?
A long neck ball nose end mill is used for deep cavities, recessed features, and other areas where additional tool clearance and reach are required.
Can the HS(200) machine hardened steel up to 65 HRC?
Yes. The HS(200) is designed for machining hardened steel and mold steel up to 65 HRC.
Is the HS(200) suitable for dry machining?
Yes. It is designed for high-speed, dry, and semi-dry machining and can also be used with coolant when required.
Can JimmyTool customize the HS(200) Long Neck?
Yes. JimmyTool can manufacture custom long neck carbide ball nose end mills based on drawings, samples, or specific machining requirements.
Request a Quote for HS(200)
Need a long neck ball nose end mill for deep cavity machining or hardened steel up to 65 HRC?
Send us your tool diameter, required reach, workpiece material, hardness, machining conditions, and quantity.
For non-standard requirements, a drawing or sample can also be provided for review. JimmyTool can recommend a suitable HS(200) configuration or develop a custom long neck ball nose end mill for your application.
