This hole saw kit includes 20 pieces. It has a 1/2 inch hex, 7/16 inch hex shank. This hole saw kit is designed for use with wood, aluminum, fibreglass, plastic, steel, tin, and wood. It includes two arbors and pilot drill. Plus, it has bi-metal teeth.
Hole Saw Sizes (Hole Saws)3/4 in, 7/8 in, 1 in, 1 1/8 in, 1 3/8 in, 1 1/2 in, 1 3/4 in, 2 in, 2 1/8 in, 2 1/4 in, 2 1/2 in, 2 11/16 in, 3 in, 3 1/4 in, 3 3/8 in, 3 5/8 in, 3 3/4 in, 4 1/2 in, 4 3/4 in