Drill America DMS04-9114 14-Piece Bimetal Industrial Maintenance Hole Saw Kit 14-piece hole saw kit includes 11 hole saws in diameters from 3/4" to 3", two arbors, and one pilot drill Bimetal hole saws are designed for cutting ferrous and nonferrous metal, wood, and plastic Variable pitch for efficient cutting and chip evacuation Comes in a plastic storage case with handle