Festool Sanding Block HSK-Duo 80x133 (# 578959)

Here’s another great Festool hand sanding option - a sanding block with two different foam densities, one on each side, so it’s like two options in one. One side is a sponge for contoured surfaces and the other is a firm block. Just attach a piece of 80 mm x 133 mm hook and loop sandpaper to the block (the kind used for the RTS and LS130 sanders).

The Duo Foam includes a small selection of Granat Net abrasives to get you started - 2 each or 80, 120 and 180 grit.