Bristle disc KIT Roloc 50mm P50/80/120 Bristle disc KIT for processing and removing gaskets and other materials from aluminum and steel. Often used by mechanics / engine renovators but also other professional groups who need to easily remove gaskets and the like in a simple way. This product is standard in the toolbox for mechanics as they make things incredibly easy. Used with a screwdriver / drill or compressed air tool. Max speed approx. 18000 rpm. A brush disc comes with an 8mm shaft and the brush disc itself. Usage : Start with step 1. If it doesn't remove your gasket residue or dirt, move on to the next step. P120 (gray) and low speed -> increase speed for faster removal P80 (yellow) and low speed -> increase speed for faster removal P50 (green) and low speed -> increase speed for faster removal Kit contains: 1x P50 Green (Coarse) 1x P80 Yellow (Medium) 1x P120 Grey (Fine) Reference 3M 07528