7-3/4" Pro Tile File for Granite, Marble, Porcelain, Ceramic and Stone. With its extra wide, carbide grit surfaces, the QEP 1 in. x 7-3/4" Steel Tile File is great for quick filing. The oversized file is perfect for smoothing the sharp edges of tile, or for making unique shapes. Equipped with a comfortable, cushion grip, the 1" x 7-3/4" filing surfaces have two different grits on the opposing file faces; one smooth and one coarse. Smoothes and shapes marble, stone, ceramic and porcelain edges.