Scope of delivery12 hole saws: 35, 40, 44, 51, 57, 60, 74, 84, 92, 105, 114 and 133 mm 1 HSS drill bit 1 concrete drill bit 1 concrete extension 1 HSS extension In system case that also fits the Festool systemHole saw HM with tungsten carbide blade "Multi Purpose" applications: A perfect hole saw for making holes in most materials. Cuts more than 10 gr faster than traditional hole saws and has an unmatched lifespan. Cuts: wood, chipboard, MDF, laminate, plastic, plaster, lightweight concrete, leca, fiberglass, and tile and stone materials up to a hardness of 6.