Exchange-A-Blade, 7/16" Shank Spring Load Mandrel, 1 Piece, Holds Drive Pins Securely In Place & Will Not Vibrate Loose, For 1/2" Drill, Exchangeable, Fits Exchange-A-Blade Hole Saw Sizes 1-1/4" To 7-7/8", Includes Pilot Drill.
1 7/8" MM/Bi Hole Saw
1 3/8" MM/Bi Hole Saw
2 1/4" Carb Hole Saw
12.5mm BLK OX Met Bit