These superior-quality grinders are made of aluminum oxide and cobalt alloyed by ceramic powder which provides the high resistance and rigidity required for removal and roughing.
The ceramic binder releases the abrasive grains gradually so that when the abrasive starts to lose its cutting edge it is replaced by a new grain with sharp cutters.
The blue grinders keep their shape in a perfect way and are suitable for use on hard tempered materials.
They cut well and leave the surface smooth. Operating speed max 30 m/sec.

Use glasses or a visor during grinding operations.