Festool Granat 40G Delta Sanding Sheet STF DELTA/9, 10-Pack 577538Details 577538, Festool sandpaper STF DELTA 9 P40 GR 10 The sanding pad of the cordless DTSC 400 and DTS 400 REQ got an upgrade! With an all NEW hole pattern, the sanding pad can now reduce suction on the surface and optimize airflow through the tool. This leads to better guidance and control over your delta sander and improves the surface quality of your workpiece. Features A new hole pattern provides optimal air current and reduces suction on the