With either method, you’ll still have to scrape some areas by hand. Install the carbide-grit grout blade into your recip saw so it points down while the saw handle is pointing up. Apply power ...

Try using the DEWALT DWE305 Reciprocating Saw and Dremel's High ... grout saw to cut into the grout lines at the edges. For this purpose, you may use carbide-grit blades as they can last up ...