Hole Saw, Arbor Design Not Included, Tooth Material Bi-Metal, Saw Dia. 1 1/8 in, Teeth per Inch 4/5, Max. Cutting Depth 1 7/8 in, Impact Rated No, Thread Size 1/2 In.-20, Shank Size 3/8 in Hex, Pilot Drill Size 1/4 in dia x 3 1/4 in L