Hole Saw, Primary Material Application Steel, Materials Cut Steel, Arbor Design Arbor Not Included, Tooth Material Bi-Metal, Saw Dia. 3 3/4 in, Teeth per Inch 4/6, Max. Cutting Depth 1 5/8 in, Impact Rated Not Impact Rated, Shank Size 7/16 in, 1/2 in, Pilot Drill Size 1/4 in dia x 4 1/4 in L