[Product] XEBEC Brush for Surface End Type; [Uses] Polishing and deburring metal, resin, plastic, etc. Lineup: White (high grinding power), red (medium grinding) and pink (low grinding power). [How to use] Attach it to an electric rotating tool and rotate while pushing the brush tip into the desired area to deburr and polish it. Please note that the maximum rotation speed and recommended rotation speed are provided on each product. If you do not protect the maximum rotation, the brush part may be scattered and dangerous. Here are general ways to choose the grinding force: It is suitable for processing of hard materials that are more than iron, red is aluminum and copper, and pink is suitable for resin and plastic.