ITEM NAME:2 Pieces Straight Router CNC Engraving Woodworking V Groove Bottom Cleaning Description: The is made of high quality tungsten steel alloy forging , body is made of HSS Build-up & Heat Resistant Coating,Industrial grade micro grain car.The is made of high quality tungsten steel alloy forging, body is made of HSS. Baked on heat resistant coating prevents build-up of sawdust, resin, and pitch. The color may have different as the difference display, pls understand.