I really can't find a suitable surface for these brushes. I clean a lot of engine parts. They appear to be badly scratched or not cleaned at all. Aluminum might be too soft, but not everything. Steel or iron, it could be.
π¦ A16010600Ux0647 Abrasive Sanding Sandpaper Mandrel" -> "High-Quality Abrasive Sanding Sandpaper Mandrel (Model A16010600Ux0647)
3 Review
Merit M 9 2 5 Extra Shank Length Cartridge Diameter
3 Review
πͺ Weiler 56490 Mandrel Cutter Diameter
3 Review
π© Simpson Strong-Tie PMANDREL75 RC Drive Mandrel
3 Review