ZIP WHEEL BLUEZIPWHEELS A range of European made twist knotted steel wire brush wheels for use with 100 and 115mm electric angle grinders, these brushes will quickly and efficiently remove rust, paint, sealants, and other dirt without attacking the steel.Size of the wire 0.5mm95mm DiameterM14 ThreadMax 14000rpmThe bevel shaped brushes are better for irregular surfaces, along edges and the cup-shaped brushes are better for larger flat surfaces.