IRWIN UNIBIT 1 Step Drill Bit, 13 Hole Sizes, 1/8 in to 1/2 in, 1/32 in Step
Step Drill Bit, High Speed Steel, Black Oxide, 1/8 in to 1/2 in Size Range, Hex, 1/4 in Shank Hex Size, 1/4 in Shank Diameter, 3 3/16 in Overall Length, Maximum Drilling Depth 1/8 in
