... ,cutting wheel 1.size:2'',3'',4'',5'' 2.T29 AND T27 cleand and strip disc,cns disc,flap disc removing rust ... . Discs are made using extra coarse grade silicon carbide and can be mounted on a straight shaft tool or bench ... metal surfaces, inspecting welds, removing coatings and preparing surface for recoating. Available in the color black and several different RPMs. cleaning and strip disc