Description
General description The Irwin Step Drill Bit is designed for precision drilling with a range of hole sizes, making it ideal for various DIY and home improvement projects. Technical specifications Number of hole sizes: 13 Hole diameters: 5 mm, 7.5 mm, 10 mm, 13 mm, 16 mm, 19 mm, 21 mm, 23 mm, 26 mm, 29 mm, 31 mm, 33 mm, and 35 mm