Removing weld scale spatters,extra-heavy rust and corrosion, paint and dirt and from metal and other surface.Use for surface roughening,for adhesion and finsish preparation perior to plating or painting,stripping paint from surfaces like wood.For use on steel and finish preparation.0.0118 in. steel crimped wire for longer life.For operation at speeds up to 4,500RPM,1/4 in. shank suitable for drill.Color: silverSet Include:Size:Wheel Brush 2pc-1-1/2in,1pc-2in,1pc-2-1/2in,1pc-3in,Cup Brush:1pc-2in,Bristle Material:SteelMaterial Dia: 0.0118inMax Speed:4500R.P.MShank:1/4inPackage Contents: 6* Brush SetOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.