Hole Saw Kit, Primary Material Application Metal, Materials Metal, Arbor Design Built-In, Tooth Material High Speed Steel, Teeth per Inch 8, Max. Cutting Depth 1/2 in, Impact Rated Yes, Number of Hole Saws 3, Saw Size Range 7/8 in to 1 3/8 in, Hole Saw Sizes (Hole Saws) 7/8 in, 1 1/8 in, 1 3/8 in, Shank Size 1/4 in Hex, Pilot Drill Size 1/4 in dia x 3 1/2 in L, Number of Pieces 3