9 Pieces Hole Saw : 19mm(314") 22mm (7/8") 29mm (1-1/8*) 32mm (1-114*) 38mm (1-1/2*) 44mm (1-3/4**) 54mm(2-1/8") 64mm(2-1/2") 76mm(3") 1Piece Mandrel 9.5mm (3/8") With Pilot Drill 1Piece Mandrel 6.35mm (1/4*) 1Piece Hex Key Wrench 2.5mm (3/32**)