Hole Saw Kit, Primary Material Application Wood, Materials Cut Metal, Wood, Arbor Design Built-In Arbor, Tooth Material Bi-Metal, Teeth per Inch 5/6, Max. Cutting Depth 1 7/8 in, Impact Rated Not Impact Rated, Number of Hole Saws 2, Saw Size Range 1 in to 2 1/8 in, Hole Saw Sizes (Hole Saws) 1 in, 2 1/8 in, Thread Size 1/2 In. -20, 5/8 In. -18, Shank Size 3/8 in, Pilot Drill Size 1/4 in dia x 3 3/32 in L, Number of Pieces 3