D.S.G.
Wheels are for machineswhich essentially grinds flat surfaces and
mostly employ a pair of wheels called D.S.G. The wheels are mounted
against steel machine plates so that the grinding is performed on the
flat sides of the wheel. D.S.G. have been developed into high
production precision machine tools. Now their use covers the entire
range of grinding from snagging rough castings and forgings to
extremely precise lapping.