Erbauer Holesaw (Dia)11mm Universal Bi-metal 8 piece Holesaw set set Draper 5/16" Carbide Grit Arbor for 14-30mm Hole Saws Draper 7/16" Carbide Grit Arbor for 32-150mm Hole Saws Draper Masonry Pilot Drill, 1/4" Draper HSS Bi-metal Holesaw Blade, 95mm Draper Hex. Shank Holesaw Arbor with HSS Pilot Drill for 14 - 30mm Holesaws, 5/16" Thread Draper Locking Hex. Shank Holesaw Arbor with HSS Pilot Drill for Holesaws 32 - 210mm, 7/16" Thread Draper Shaft Holesaw Arbor Extension, 320mm, 7/16" Hex. Draper Holesaw Arbor Adaptor, 32 - 150mm Draper HSS Bi-Metal Hole Saw, 59mm Draper HSS Bi-Metal Hole Saw, 68mm DEWALT Bi-Metal 2X Life Holesaw 22mm IRWIN® Bi-Metal High Speed Holesaw 14mm IRWIN® Bi-Metal High Speed Holesaw 16mm IRWIN® Bi-Metal High Speed Holesaw 17mm IRWIN® Bi-Metal High Speed Holesaw 19mm IRWIN® Bi-Metal High Speed Holesaw 21mm IRWIN® Bi-Metal High Speed Holesaw 22mm IRWIN® Bi-Metal High Speed Holesaw 24mm IRWIN® Bi-Metal High Speed Holesaw 27mm IRWIN® Bi-Metal High Speed Holesaw 29mm IRWIN® Bi-Metal High Speed Holesaw 30mm