Dewalt DW1818 3/8 Hi-Torque Mandrel 1-1/4 To 3

Compatible With Standard 1-1/4 Inch To 3 Inch Bi-Metal Hole Saws. Pilot Bits Feature The Patented Dewalt Pilot Point Tip For Faster Material Penetration, Particularly In Metal. For Use In Primarily Wood Cutting Applications In 2 X Lumber And Subflooring Material. No Spin Shank Keeps Bit From Spinning In High Torque Applications