Hole Saw Kit, Primary Material Application General Purpose, Arbor Design Built-In Arbor, Tooth Material Carbide Tipped, Teeth per Inch 4, Number of Teeth (Hole Cutters Only) 3, Max. Cutting Depth 2 7/16 in, Impact Rated Not Impact Rated, Number of Hole Saws 3, Saw Size Range 2 1/8 in to 3 5/8 in, Hole Saw Sizes (Hole Saws) 2 1/8 in, 2 9/16 in, 3 5/8 in, Thread Size 1/2 In.-20, 5/8 In.-18, Shank Size 1/4 in, Number of Pieces 7