The following are trademarks for a number of DEWALT power tools, add-ons, anchors and concrete adhesives: The yellow and black coloration plan; the “D”-shaped air ingestion grill; the assortment of pyramids about the handgrip; the kit box configuration; plus the assortment of lozenge-formed humps about the surface of your tool. https://knoxuiwhs.mybuzzblog.com/6223376/5-essential-elements-for-dewalt-20v-max-grinder-dcg412b