The crimped wire cup brushes are available to fit on portable angle grinders,large angle brinders,pneumatic grinders etc. The crimped wire cup brush has different ... /8"(22.2mm)3.Cup color:red, blue,orange,black,zinc plated etc4.wire material:1)S:steel wire 0.35,0.3mm2 ... ,0.5mm3)BS:brass plated steel wire:0.3mm4)B:brass wire:0.3mm5)CS:carbon steel wire:0.3,0.35,0 ...