Dewalt DWA1789IR Step Drill Bit 2 Hole Sizes, 7 8 in to 1 1 8 in, 3 4 in Step Increments, Hex Shank T13CM2J Air Flow 31 cfm Filter Air Flow 31 cfm Filter Type HEPA Series 20V MAX(R) Standards UL Listed Tank Material Plastic Voltage 20 120 Item Portable Shop Vacuum Battery Included Bare Tool Bare Tool Corded Cordless Cordless Corded Banded Cordless Features Cordless and Corded Thermostat Includes Built In Thermostat 7 8 in to 1 1 8 in Size Range Material Titanium Finish Titanium Nitride Number of Pieces 1 Number of Flutes 2 Shank Type Hex Step Thickness 5 32 in Shank Shape Hex Drill Bit Finish TiN Impact Rated Yes Item Step Drill Bit Drill Bit Material High Speed Steel Decimal Equivalent 0