Bi-metal Holesaws and Arbors all included in a useful set of our popular holesaw sizes and protected in a robust case. These sets have been designed to make sure that you have the holesaws you need in one place. This set includes: A1 & A2 Arbor, 16, 20, 25, 32, 40, 52, 64, 70, 82mm Holesaws