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Step Drill Bit 5-35mm (13 Holes)
Irwin Step Drill Bit. Number of hole sizes: 13.Hole diameters: 5, 7.5, 10, 13, 16, 19, 21, 23, 26, 29, 31, 33, and 35.
Irwin Step Drill Bit. Number of hole sizes: 13.Hole diameters: 5, 7.5, 10, 13, 16, 19, 21, 23, 26, 29, 31, 33, and 35.