Silverline Rotary Steel Wire Cup Brush 75mm

Amazon

0.3 mm dia high tensile steel wire For rust and paint removal, descaling, deburring and preparation of welding seams For metal and stone working, cleaning, surface preparation and fabrication tasks For use with power drills 6 mm shank / max 4500rpm

Electrical World

High tensile 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.