Exchange-A-Blade, 1/4" Hex Shank Mandrel, Spring Load, 1 Piece, Holds Drive Pins Securely In Place & Will Not Vibrate Loose, Exchangeable, Fits Exchange-A-Blade Hole Saw Sizes 9-1/16" To 1-1/4", Includes Pilot Drill.
11/64" Titan Drill Bit
3/16-7/8 Step Drill Bit
1/2" Dowel Drill Bit