D103 Micro Rotary Football Diamond Hole Drill – DiamondCore Tools
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D103 Micro Rotary Football Diamond Hole Drill


The D103 Micro Rotary Football tip is great for drilling or shaping small details or features. This tip can be used to erase tiny pottery imperfections or to grind small accents. It must constantly be used with water to avoid damage to the bit. For creating small, rounded contours, the DiamondCore® Micro Rotary Football Drill is a big win!


  • Diamond Grit for shaping 
  • 2 mm (dia.) x 5 mm, football end shape
  • 1.6 mm diameter shaft 


  • Erasing imperfections, grinding small accents 
  • Cleaning up or refining small parts of bisque or high-fired ceramics
  • Removing sharp edges
  • Cleanup of bisque spots


  • Works on ceramic, tile, stone, or glass
  • Rapid removal of unwanted material
  • Long lifespan if used properly
  • Controls dust when used with water


  • Follow all safety precautions
  • Always wear safety goggles
  • Always use with water to extend tool life and control dust
  • Must be constantly used with water to avoid overheating
  • Use a cordless rotary tool to avoid water mixing with electricity
  • While drilling, ream out the hole first to prevent jamming
  • Be sure to clean and remove all debris
  • Do not attempt to force or pry with this tool
  • Keep out of the reach of children

Technique note: To increase the tool's longevity, use water, high speed, and gentle pressure.  



  • D101: Best for clearing out small existing holes
  • D102: Best for drilling new small holes, creating small details
  • D111: Best for reaming out openings, creating clean holes