5" Premium grade Diamond polishing pad Dry 1 Piece GRIT 400 for Granite, Marble, Concrete, Stone etc polishing. These diamond polishing Pads are aggressive and suitable for any kind of natural or artifical stones like Granite, Marble, Concrete, Terazzo, Travertine and glass etc. It is very flexible and can polish either contoured surface like Ogee, Full Bullnose, Half Bullnose, Bevel, Demi or flat surface. Dry polishing pads can be used on low speed grinders, it gives flexibility to avoid high cost tools like Wet Polishers. Typically Wet polishing creates lot of liquid mess in work area. It is challenging to use wet polishing onsite or post-installation. Dry polishing is easy and quick way to polish stone etc. It does cteate dust, use nasal protection during polishing. Typically grit 400 pads are used to start polish, and consumed more than higher grits diamond polishing pads. More rough initial surface is, more lower grits pads are needed. FAQ: 1) Can I use STADEA Standard C dry polishing pads for Wet Polishing. Ans: Of cource yes. STADEA Standard C dry polishing pads are designed for dry polishing to dissipate heat faster and keep the temperate of polishing surface low. This does not stop it from being used wet and typically it will have longer life when used for wet polishing. 2)