Cleans clogged blades so they cut like new. (CUT INTO THE BLOCK DRY WITH NO WATER)
Ceramic block for cleaning clogged Diamond Blades & Diamond Hole Cutters.
Just CUT INTO THE BLOCK DRY WITH NO WATER by about 25mm, and the blade will cut like new.
(It may require more than 1 cut, for badly clogged blades)