6-PC HOLE SAW SET. Set contains one each of the following: 1-1/4", 2-1/8", 2-5/8" & 2-7/8" hole saws. Bayonet mandrel & pilot bit. Self sharpening. Lasts longer, cuts faster. Cutting depth: 2-1/4". Cuts: ceramic tile, concrete block Brick, fiberglass, PVC, plexiglass Cultured marble and wood with nails.