12" Diamond Grinding Disc

12" Diamond Grinding Disc
60 Grit 12" Diamond Grinding Disc
120 Grit 12" Diamond Grinding Disc
240 Grit 12" Diamond Grinding Disc

12" Diamond Grinding Disc

Regular price $126.00
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Sanding with a potter’s wheel? You need the 12" Diamond Grinding Disc from DiamondCore® Tools! It's available in 3 grits and is faster than silicon carbide and sandpaper.

Installation: Select a smooth, clean, flat waterproof bat to dedicate. Draw centering rings on the bat. Peel and remove the red film from the back of the disc. Place the disc in the center on the bat adhesive side down, taking care to keep in the center.  Press down and keep 25 lbs of weight on it overnight while flat for maximum bond.


  • 12" diameter diamond grinding discs "POTSAVERS"
  • Adhesive-backed metal plate with diamonds fused on
  • Diamond grit has a 7000 hardness rating (silicon carbide abrasive is only rated at 2400 hardness)
  • 5 lbs weight
  • 60 grit - coarse - heavy glaze or high-fired clay removal
  • 120 grit - general - leveling a pot or grinding
  • 240 grit - fine - smoothing


  • Permanently attached to a bat for pottery wheel use
  • Remove high-fired glaze drips or high-fired ceramic
  • Level a warped pot
  • Grind tile, stone or glass
  • Level kiln shelf posts and furniture 


  • Easy peel-and-stick adhesive backing
  • Long lifespan if used properly with water
  • Dust is controlled with water use
  • Lasts longer than silicon carbide
  • Multiple grit sizes available
  • Faster than silicon carbide & sandpaper
  • Better results
  • Less fatigue than other sanding methods


  • Use all safety precautions
  • Always use safety goggles
  • Be certain that debris does not get into moist, usable clay
  • Carefully clean splash pans to remove all sharp debris
  • Always use with water to maximize tool life & control dust
  • Do not attempt to force grinding
  • Take care to avoid skin removal
  • Keep out of the reach of children

Note: Always use water, high speed and gentle pressure. “Let the diamonds do the work.” Overheating the tool will decrease tool lifespan.




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Customer Reviews

Based on 3 reviews
Debbie T.
Great Grinder Disc

Love this product, so easy to use and so much quicker to use.

Elizabeth M.J.
Excellent Quality for Grinding Bottoms

I purchased the 12” discs for both the 120 and 240 grit. Initially, I was hesitant to purchase them due to the price, but I think the discs are worth every $ spent. I placed the disc on a wet bat mate and added water frequently to the disc while grinding. I was amazed at how well they work. I was able to smooth the feet of several of my pots and grind off drips. These discs are capable of grinding off much more than you may intend. So, exercise caution and check often.

Matt H.
Top quality disc!

I've used the cheap Chinese discs for years and they wear out pretty fast. Already this one seems sharper at 120 grit, it almost grinds away too much! Maybe I'd be better with the 240 grit. I'll be ordering more :)