Mercer Industries 186040 Stringer Bead Wheel, 6" x 3/16" x 5/8"-11, Stainless Steel, For Angle Grinders Provides excellent abrasion and wear resistance, along with high flexing action Superior rotational balance reduces operator fatigue and improves tool life Very aggressive for tough jobs like cleaning welds Industrial wire brushes are made from high quality steel .020 Stainless Steel