Dremel Multimax MM450 3 inch Wood and Drywall Blade. The 3 inch Wood & Drywall Saw Blade is ideal for making precise cuts in wood, plaster, drywall material. Applications include cutting openings in flooring for venting, repairing damaged flooring and cutting openings for electrical boxes. The blade can also be used for window restoration to remove glazing. The Wood & Drywall Saw Blade works best on softer woods such as pine. For harder woods the blade life will be limited. Select a medium to high speed.