Milwaukee® BIG HAWG™ Pilot Bit, 7/16 in Arbor, 3-Flat Shank, 5/16 in Shank, 2-1/8 in, 2-1/4 in, 2-9/16 in, 3 in, 3-5/8 in, 4-5/8 in Diameter Hole Saw, 5/16 in Pilot Drill, 4-1/2 in Overall Length, 2 in Flute Length, Carbide Cutting Edge, Steel, Applicable Materials: Cement Board, Plaster, Shingles, Stucco and Wood