DeWALT® Impact Ready® DWA1783IR High Performance Step Drill Bit, 1/8 in Dia Min Hole, 1/2 in Dia Max Hole, 13 Steps, Titanium, 13 Hole Sizes, 1/4 in Shank | Dillon Supply
Dewalt - Step Drill Bit, 7/8, 1-1/8
DEWALT 1/4-in High-Speed Steel 2-Step Drill Bit in the Step Drill Bits department at Lowes.com
DEWALT 1/4-in High-Speed Steel 2-Step Drill Bit in the Step Drill Bits department at Lowes.com
Dewalt Step Drill Bit Set, 3-Piece (Dwa1790Ir) | eBay