Carbide Tapered Ball Nose Ø4mm

Ideal for 3D carving and surface finishing for smooth, detailed contouring across a range of materials. The tapered shaft adds strength and reduces deflection, making it perfect for finishing passes on wood, plastics, foams, and soft metals. A reliable choice for sign-makers, sculptors, and CNC professionals needing clean, consistent results in medium-to-fine detail work.

Shank: 6mm | Cut Length: 30.5mm | Cut Radius: Ø2mm

Key Features:

• Ball Radius: 2mm (4mm diameter) – suitable for medium-to-fine detail work and broader finishing passes.
  
• Tapered Shaft: The shaft gradually narrows from the shank to the ball tip, which increases rigidity and reduces vibration
  
• Material: Made from solid carbide, offering excellent wear resistance and cutting edge sharpness
  
• Flute Count: 2 Flute for wood and plastics
  

Applications:

• 3D carving and relief work in signs, sculptures, and topographical models
  
• Finishing passes on CNC-machined 3D surfaces.

Material Suitability:

• Hardwood and softwood
  
• MDF and plywood
  
• Plastics (e.g., acrylic, polycarbonate)
  
• Foam board and modelling materials
  
• Soft metals like aluminium and brass (with proper settings)
  

Advantages:

• Larger radius allows for smoother surface finishes and faster coverage on wide 3D surfaces
  
• Tapered geometry reduces tool deflection, especially on deeper cuts
  
• Stronger tip than smaller-radius ball nose bits, reducing breakage risk.
  
• Suitable for both roughing and finishing in small-to-medium sized 3D jobs.
  

Limitations:

• Not ideal for extremely fine detail (e.g., tight corners or intricate engraving)
  
• Larger radius means less resolution in fine relief compared to smaller ball nose bits
  
• Requires careful speed/feed setup to prevent tool marks in soft materials