15pcs T Shape Stainless Steel Wire Brushes Wheel 1/8 Mandrel. Rust Removed Polishing Wheel For Rotary Tool. Wire brushes set is made of stainless steel, durable, long service life on the toughest cleaning jobs. T shape buffing head design, polishing diameter is approx 0.98inch(25mm), shank diameter is 1/8 inch(3mm). Application: Suitable for metal surface cleaning derusting grinding dusting deburring polishing stripping residue. -Please wear safety glasses and other protective equipment when working with steel brushes-