Best Step Drill Bits

DEWALT DWA1789IR 7/8-Inch-1-1/8-Inch Impact Ready Step Drill Bit

Milwaukee #4 Step Bit 3/16 - 7/8

NEIKO 10181A Step Drill Bit Set, 3 Piece, Spiral Grooved for Faster Drilling, Step Bits for Stainless Steel, Metal, Wood, Plastic, Unibit Cone Drill Bits with 31 Step Sizes Total

Milwaukee 48-89-9224 Step Bit 6-Piece Set (#1, 4, 6, 7, 8, 9)

Klein Tools KTSB15 Step Drill Bit No15, Double Fluted, 3-Hole Sizes

New Milwaukee 48-89-9221 3 Piece Step Bit Set Black Oxide Step Drill Bit

HIGHFIRE 3PCS Cobalt Step Drill Bit Set, Three Spiral Flutes Hex Shank Unibit Drill Bits for Metal, Stainless Steel, Aluminum, Wood, Plastic.

IRWIN Step Drill Bit, 1/8-Inch to 1/2-Inch Step, 1/4-Inch Shank (10231)

ZELCAN HSS 5PCS Titanium Spiral Grooved Step Drill Bit Set with Automatic Center Punch, Unibit Drill Bits Set for Sheet Metal with Aluminum Case, Multiple Hole Stepped up Bits for DIY Lovers

Milwaukee Electric Tool 48-89-9209 Step Drill Bit, 7/8" to 1-1/8"