10pcs Stainless Steel Pen Shape 6mm End Brushes 3mm Shank Diameter Wire Brush Drill End 1/8" Shank Wire Brush
https://www.vogueparade.com/shopping/EN/4204/1/32601909797/10pcs-stainless-steel-pen-shape-6mm-end-brushes-3mm-shank-diameter-wire-brush-drill-end-18-shank-wire-brush//