Hole Cutter, Primary Material Application Steel, Materials Stainless Steel, Arbor Design Not Included, Tooth Material Tungsten Carbide, Saw Dia. 7/8 in, Teeth per Inch 4, Number of Teeth (Hole Cutters Only) 4, Max. Cutting Depth 1/8 in, Impact Rated No, Thread Size 3/8 in, Shank Size 3/8 in Round