HS(200) Micro Diameter Long Neck 2 Flute Ball Nose End Mill

The HS200 Micro Diameter Long Neck 2 Flute Ball Nose End Mill combines 0.2 μm ultra-fine grain carbide with an AlTiCrSiN PVD coating. Designed for deep, fine features in hardened steel up to 65 HRC, it supports precision mold machining, high-speed cutting, and dry or semi-dry machining.

Product Details

The HS200 Micro Diameter Long Neck 2 Flute Ball Nose End Mill is designed for machining small and deep features that require both a compact cutting diameter and additional tool reach.

Its micro-diameter ball nose profile is suited to fine geometries, while the long neck configuration provides additional clearance for recessed and difficult-to-access areas.

The tool uses a 0.2 μm ultra-fine grain carbide substrate with an AlTiCrSiN multi-element PVD coating.

This combination is designed for high-speed machining of hardened and difficult-to-machine materials, including hardened steel and mold steel up to 65 HRC.

Micro Diameter for Fine Features

A small cutting diameter allows the tool to enter narrow geometries that cannot be machined effectively with larger ball nose end mills.

The HS200 is suitable for fine cavities, miniature features, narrow grooves, small radii, and detailed 3D surfaces.

This makes it well suited to precision mold and die components where feature size is a key machining consideration.

Long Neck for Deep Access

The long neck configuration extends the tool’s reach while maintaining a small cutting profile.

It provides additional clearance for deep cavities, recessed areas, and narrow sections, helping the tool reach surfaces that may be inaccessible with a standard configuration.

Because micro tools are sensitive to deflection, the required reach should be matched carefully to tool diameter, machine rigidity, and cutting conditions.

Key Features & Benefits

0.2 μm Ultra-Fine Grain Carbide

The HS200 uses 0.2 μm ultra-fine grain carbide for a fine and stable cutting edge.

Its fine-grain structure supports wear resistance and edge stability during precision machining.

AlTiCrSiN PVD Coating

The AlTiCrSiN multi-element PVD coating provides high coating hardness and resistance to elevated cutting temperatures.

Its high-temperature performance above approximately 1100°C supports demanding high-speed, dry, and semi-dry machining.

Micro-Diameter Ball Nose Profile

The small ball nose profile is designed for detailed machining and fine surface features.

It is particularly useful where larger tools cannot provide the required feature access or geometric detail.

Long Neck Configuration

The extended neck provides additional working clearance for deep and recessed features.

This makes the tool a practical choice for complex mold geometries that require both a small diameter and extended reach.

Hardened Steel up to 65 HRC

The HS200 is designed for hardened steel and mold steel applications up to 65 HRC.

Its carbide substrate and coating are selected for demanding hard-material machining conditions.

Machining Challenges the HS200 Helps Solve

Small Features at Greater Depth

A small-diameter tool can access fine features, but standard configurations may not provide enough reach.

The combination of micro diameter and long neck addresses applications where both requirements occur together.

Limited Clearance in Deep Cavities

Tool holders and standard-length configurations can interfere with recessed workpiece areas.

The extended neck provides additional clearance for deeper machining features.

Tool Wear During Micro Machining

Small cutting tools have less material at the cutting edge and can be more sensitive to wear.

The ultra-fine grain carbide and AlTiCrSiN coating are designed to support edge stability under demanding conditions.

High Thermal Loads

High-speed and dry machining of hardened materials can generate substantial heat.

The AlTiCrSiN coating provides high-temperature performance above approximately 1100°C to support these cutting conditions.

Recommended Materials

The HS200 is suitable for:

  • Hardened steel up to 65 HRC
  • Mold steel
  • Stainless steel
  • Titanium alloys
  • Nickel-based superalloys
  • Other difficult-to-machine materials

Tool selection should take into account workpiece hardness, feature size, required reach, tool diameter, machine rigidity, and cutting parameters.

Typical Applications

The HS200 Micro Diameter Long Neck Ball Nose End Mill is suitable for:

  • Deep micro-cavity machining
  • Precision mold machining
  • Fine 3D contouring
  • Narrow feature machining
  • Recessed feature machining
  • Small-radius finishing
  • Detailed mold surfaces
  • Hardened mold steel machining
  • Precision finishing
  • Titanium alloy machining
  • Nickel-based superalloy machining

It is particularly suited to applications where small feature size and deep tool access are required at the same time.

Technical Specifications

SpecificationDetails
Product SeriesHS200
Tool TypeMicro Diameter Long Neck Ball Nose End Mill
Number of Flutes2
SubstrateUltra-Fine Grain Carbide
Carbide Grain Size0.2 μm
CoatingAlTiCrSiN Multi-Element PVD Coating
High-Temperature PerformanceAbove approx. 1100°C
Hardened Steel HardnessUp to 65 HRC
Cutting MethodsHigh-Speed, Dry, Semi-Dry, Coolant-Assisted
Suitable MaterialsHardened Steel, Mold Steel, Stainless Steel, Titanium Alloys, Nickel-Based Superalloys

Why Choose the HS200 Micro Long Neck Design?

The main advantage of this configuration is the combination of micro-scale cutting and extended reach.

It is designed for small, deep, or recessed features where a conventional ball nose end mill may be limited by either cutting diameter or tool access.

The AlTiCrSiN coating and ultra-fine carbide substrate further support high-speed machining of hardened materials up to 65 HRC.

Custom Micro Long Neck Ball Nose End Mills

Highly detailed components may require specific tool diameters, neck lengths, cutting lengths, or other geometry.

JimmyTool supports custom carbide ball nose end mills based on customer 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 where available.

FAQ

What is a micro long neck ball nose end mill used for?

It is designed for small and deep features, such as micro cavities, narrow sections, fine 3D contours, and recessed mold geometries that require both a small cutting diameter and extended reach.

What is the advantage of combining a micro diameter with a long neck?

The micro diameter allows access to fine features, while the long neck provides additional clearance and reach for deeper areas.

Can the HS200 machine hardened steel up to 65 HRC?

Yes. The HS200 is designed for hardened steel and mold steel applications up to 65 HRC.

Can JimmyTool customize this tool?

Yes. JimmyTool can manufacture custom carbide ball nose end mills based on drawings, samples, or specific machining requirements.

Request a Quote for HS200

Need a micro long neck ball nose end mill for a deep cavity, fine mold feature, or hardened steel application?

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 HS200 configuration or develop a custom micro long neck ball nose end mill for your application.

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