Silverline Brassed Steel Wire Wheel & Cup Brush Set 6pce 6pce High tensile brassed steel wire, 0.3mm diameter, for rust and paint removal, descaling, deburring and preparation of welding seams For metal and stone working, cleaning, surface preparation and fabrication tasks Use with power drills 6mm shank 2 x 38, 1 x 50, 63 and 75mm wheels and 50mm cup brush.