Morris Products 13470 Hole Saw Arbor, SDS Quick Change, Snap Pins, SDS Quick Change Shank, 1-1/4" - 6" Hole Saw Diameter, 13444 Replacement Pilot Drill Hole Saw Arbor SDS Quick Change for 1-1/4" - 6" Saws - A quick-change Hole Saw Arbor for 6" Saw. Rugged, Heat Treated Steel Arbors Complete with 1/4 (6MM) High Speed Pilot Drill Cuts clean circular holes through steel & wood Built to Stand Up Under Hard High Speed Use Blister Packed