Features 100% brand new. This Pencil Polishing Brush is great to use for polishing and finishing step. Used widely in aerospace, plant maintenance, foundry, automotive, metal fabrication and shipyards. Material: Stainless steel. Wheel Brush Diameter: 5mm (0.20" approx). Shank Length: 40mm (1.57" approx). Shank Diameter:3.17mm (0.12" approx). Package List: 1pc Steel Wire Pencil Brushes