Hole Cutter Primary Material Application General Purpose Materials Cut Stainless Steel Arbor Design Not Included Tooth Material Tungsten Carbide Saw Dia 1 3/8 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