BLU-MOL Disston Blu-Mol Electrician's Metric Xtreme Bi-Metal Hole Saw Kit (9-Piece) D9593M - The Home Depot
DIABLO 16 pc Electrician's Bi-Metal Hole Saws, 6 pc SPEEDemon Spade Bits & 6 in. Carbide Thin Metal Conduit Blades (25-Pieces) D0612CFS16SELS6 - The Home Depot