End brush(brass-coated,stainless steel,brass steel,steel wire) 1,Strength 2,Wearable 3,Security Crimped wire end brush 1. Shank diameter: 1/4" or 6mm 2. Shank length: 30mm3. Shank material: A3 steel4. Shell material: 1.2mm Q195 steel5. Shell surface: coated Zi or coated Ni6. Wire material: Brass steel wire or steel wire or stainless steel wire7. Wire Diameter: 0.22mm or 0.3mm8. Type: a. shell and ...