12 inch diameter machined electroplated steel diamond grinding discs that attaches to a potters wheel like a bat. Both sides of the thin discs have a diamond grinding surface, one medium/coarse (120 grit), and the other fine (400 grit).
Just flip the disc over to change grits. Both sides are separately replaceable. Use with water. 225 square inches of total grinding area, two 12" discs back to back, combined as one.
It works like a slower speed lapping disc or lap grinder, and can be used to smooth gemstones and glass and sharpen tools. No assembly, it is ready to use. Works for high fired porcelain, stoneware or bisque.
Each disc is machined flat before electroplating for an even, very effective operation, and evenly distributed consistent grit particle size. Electroplated diamond tools vary wildly in quality. These are guaranteed to be the highest professional quality.