Detailed Product Description Blow Case Packed5Pcs/Set: Hole Saw--35mm,68mm,73mm,Or 13/8",2-11/16",2-7/8" Arbors--7/16" Hex 1/4" H.S.S.Drill7Pcs/Set: Hole Saw--38mm,44mm,51mm,57mm,64mm Or 1-1/2",1-3/4",2",2-1/4",2-1/2" Arbors--7/16" Hex 1/4" H.S.S.Drill9Pcs/Set: Hole Saw-22mm,29mm,35mm,44mm,51mm,64mm Or 7/8",1-1/8",1-3/8",1-3/4",2",2-1/2" Arbors--3/8",7/16"Hex Adapter Fits