DEWALT Hole Saw Kit D180005 14 Piece Bi Metal Cutting Tool (High Speed Steel Cutting Edge 2 Inch Depth Capacity Industrial Framing) Reconditioned and switch to the 6 inch and switch to the 6 inch stubby for high speed removal once the initial tension is broken ensuring a mirror smooth finish even when working with hardwoods Quick Change Mandrels: Includes small and large arbor adapters to facilitate rapid transitions between different hole saw diameters without auxiliary tools Brand DEWALT Model Number D180005 Product Type Hole Saw Kit Total Piece Count 14 Material Construction Bi Metal Hardened Steel Cutting Edge Material High Speed Steel (HSS) Mandrel Type Quick Change (Small and Large) Assembled Length 12