I use these brushes to clean a black round stainless steel rod after welding - they work great! You can also grind the corners of the plastic head to fit tighter corners.
Merit M 9 2 5 Extra Shank Length Cartridge Diameter
3 Review
π§ Astro Tools 1442 A34 10 24 Mandrel: Top-Quality Precision Tool for Efficient Operations
3 Review
π¦ A16010600Ux0647 Abrasive Sanding Sandpaper Mandrel" -> "High-Quality Abrasive Sanding Sandpaper Mandrel (Model A16010600Ux0647)
3 Review
Effortless Sanding with Dremel EZ407SA Drum Sanding Mandrel
3 Review