steel wire brush, twisted steel wire, cup brush 1.Material: steel 2..size:2.5, 3, 4, 5, 6 inch 3.screw: M10*1.5 M14*2 steel wire brush, twisted steel wire, cup brush Details: 1.Material: High-carbon Steel, stainless steel 2..size:2.5, 3, 4, 5, 6 inch 3.screw: M10*1.25 ,M10*1.5, M14*2,M16*2 Application:1.to remove paint and rust,stains of surface2.to meet different kinds of demands DIAMETER MAX. ...