Wheel brushes with shank specifications: 1) Diameter: 40,50,65, 75, 100mm 2)shank:6mm 3) Material: a) S: gray carbon steel wire crimped: Φ0.30, 0.35mm b) BS: brass coated steel wire crimped: Φ0.30mm c) SS: stainless steel wire: Φ0.22, 0.30, 0.35, 0.50mm d) ST: Knotted steel wire: Φ0.35, 0.5mm