Hole Saw, Primary Material Application Steel, Materials Cut Machinable Metals, Nail-Embedded Wood, Plastic, Stainless Steel, Wood, Arbor Design Arbor Not Included, Tooth Material Bi-Metal, Saw Dia. 2 1/4 in, Teeth per Inch 5/6, Max. Cutting Depth 1 7/8 in, Impact Rated Not Impact Rated, Thread Size 5/8 In.-18, Pilot Drill Size 1/4 in dia x 3 3/32 in L