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0.0394" (1.00mm) x .098" LOC AlTiN Coated 2-Flute Ball Nose Carbide End Mill, 4mm Shank | MB-150

0.0394" (1.00mm) x .098" LOC AlTiN Coated 2-Flute Ball Nose Carbide End Mill, 4mm Shank | MB-150

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1.00mm (.0394") AlTiN Coated 2-Flute Ball Nose Carbide End Mill – MB-150

This 1.00mm (.0394") 2-flute ball nose solid carbide end mill features an AlTiN coating, .098" (approximately 2.49mm) length of cut, 45° spiral helix, 4mm shank, and 2.00" overall length. It is designed for precision CNC milling, 3D contouring, profiling, and detailed machining of small components.

The ball nose cutting end has a nominal 0.50mm radius, making it useful for machining smooth curved surfaces, radiused features, and intricate three-dimensional profiles. Its small diameter is particularly suited to fine-detail finishing work and miniature features.

The AlTiN (Aluminum Titanium Nitride) coating provides improved wear and heat resistance compared with uncoated carbide in suitable machining applications. This makes the cutter particularly useful for precision work in steels, stainless steels, cast iron, and other compatible materials when appropriate cutting conditions are used.

The 2-flute, 45° right-hand up-cut spiral supports chip evacuation and smooth cutting action. Solid tungsten carbide construction provides rigidity and wear resistance for demanding precision machining.

Common Applications

  • Precision 3D CNC contouring and surface finishing
  • Fine profiling and radiused detail work
  • Miniature mold and die machining
  • Small curved surfaces and complex 3D features
  • Precision machining of steels and suitable stainless steels
  • Fine-detail machining of cast iron and compatible alloys
  • Prototype work and miniature components
  • Detailed engraving and sculpted surface machining

Features & Benefits

  • 1.00mm cutting diameter: Suitable for intricate detail and miniature CNC features.
  • 0.50mm ball radius: Designed for smooth 3D contours, rounded profiles, and radiused surfaces.
  • AlTiN coating: Improves wear resistance and heat tolerance in compatible materials.
  • 2-flute geometry: Provides cutting-edge support and chip clearance.
  • 45° helix: Supports smooth cutting action and chip evacuation.
  • .098" LOC: Provides approximately 2.49mm of cutting flute length.
  • Center cutting: Supports suitable plunging and ramping operations with appropriate parameters.
  • 4mm shank: Designed for compatible precision CNC toolholders and collets.
  • Solid carbide construction: Provides rigidity and wear resistance for precision milling.

Specifications

SKU MB-150
Former SKU M139
Tool Type Solid Carbide Ball Nose End Mill
Condition New
Cutting Diameter 1.00mm (.0394")
Ball Radius R0.50mm (nominal)
Length of Cut / Flute Length .098" (approximately 2.49mm)
Overall Length 2.00" (50.8mm)
Shank Diameter 4.00mm (.157" nominal inch equivalent)
Number of Flutes 2
End Style Ball Nose
Cutting Direction Right Hand
Flute Direction Right-Hand Helix / Up Cut
Helix Angle 45°
Center Cutting Yes
Material Solid Tungsten Carbide
Coating AlTiN (Aluminum Titanium Nitride)

About the AlTiN Coating

AlTiN (Aluminum Titanium Nitride) is a wear-resistant coating commonly used on carbide cutting tools for machining steels and other materials that generate substantial heat at the cutting edge.

The coating helps protect the cutting edges against wear and can support longer tool life under suitable cutting conditions. Performance depends on the workpiece material, spindle speed, feed rate, coolant or lubrication strategy, and machining setup.

Important Micro-Machining Considerations

At just 1.00mm cutting diameter, this end mill requires accurate toolholding, low spindle runout, rigid workholding, and carefully selected machining parameters. Use appropriate cutting engagements and controlled toolpaths to reduce the risk of breakage.

For 3D surface machining, the ball nose geometry is especially useful for contouring and finishing. Surface quality depends on the programmed stepover, cutting conditions, and workpiece material.

Need help choosing starting settings?

See our carbide end mill feed and speed calculator →

Looking for more ball nose carbide end mills?

Explore additional sizes, coatings, and cutting geometries in our Ball Nose End Mills Collection →

Returns

Returns are accepted within 30 days of delivery for unused items in resalable condition. Original shipping charges are non-refundable unless the return is due to our error. Late, bulk, used, clearance, or special-order returns may be limited or subject to approval. See our Refund Policy for full details.

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