M35 Four Spiral Flute Step Drill Bit Set 1/8"-1/2" （13 Sizes ）,1/4" Hex Shank Drill, Impact Resistant M35 HSS Unibit Step Drill bit for Stainless Steel, Wood, Aluminum, Plastic

M35 Four Spiral Flute Step Drill Bit Set 1/8"-1/2" （13 Sizes ）,1/4" Hex Shank Drill, Impact Resistant M35 HSS Unibit Step Drill bit for Stainless Steel, Wood, Aluminum, Plastic

Jerax tools 1/4 to 2 Inch Step Drill Bit Spiral Grooved Double Fluted, Large M2 High Speed Steel Drill bits for Hole Drilling in Stainless Steel, Copper, Aluminum, Wood, Plastic

Four Spiral Flute Step Drill Bits,1/8"-1/2"(13 Step Size) Impact Unibit Step Drill Bit,1/4" Hex Shank M35 Cobalt Step Bits for Aluminum,Metal,Wood,Plastic