DiamondCore Rotary Tool Cone & Slim Cone D3 D11 D12

(1 customer review)

R300.00 R

The D3 DiamondCore rotary tool features a cone shaped tip and comes in 170 grit for smoothing pottery pieces. This tool is great for grinding glaze drips, removing sharp edges, removing kiln shelf debris and more.


  • Solid diamond grinding rotary tool made of solid diamond grit and metal down to the shaft
  • D3 170 grit fine for smoothing – 7 mm x 15 mm length cone shape
  • D11 80 grit, coarse for grinding – 4 mm x 15mm length CONE shape
  • D12 170 grit, fine for autographing or personalizing


  • Grinding glaze drips, bisque or high-fired ceramic
  • Also works on tile, stone or glass
  • Removing sharp edges, smooth chipped edges
  • Shaping or cleanup of bisque spots
  • Removing kiln shelf debris


  • Rapid removal of unwanted material
  • Long lifespan if used properly
  • Dust is controlled with water use
  • Shaft size: 3 mm dia. (1/8″)
  • As the tool wears, a new layer of diamonds is exposed


  • Use all safety precautions
  • Always use safety goggles
  • Be certain to clean and remove all debris from splash pans
  • Use a cordless rotary tool to avoid water getting in motor
  • Always use with water to extend tool life and control dust
  • Do not attempt to force or pry with this tool
  • Keep out of the reach of children

Note: For longevity, use water, high speed and gentle pressure. Overheating the tool will greatly decrease tool lifespan and change the tool shape. “Let the diamonds do the work.”

Made in the USA 

Photo’s courtesy of DiamondCore® Tools

Additional information

Dimensions 6.3 × 6.3 × 0.6 cm

Cone 170, Slim Cone 80, Slim Cone 170

1 review for DiamondCore Rotary Tool Cone & Slim Cone D3 D11 D12

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  1. Gari L. (verified owner)

    So happy with my order and the terrific service received from Bohlokoa!

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